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CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 29, 2018 | Sep. 30, 2017 | Sep. 29, 2018 | Sep. 30, 2017
Revenues: |  |  |  |
Research and development revenues | $ 1,482,711 | $ 549,765 | $ 3,563,341 | $ 1,942,819
Revenues | 5,126,330 | 6,139,167 | 16,723,848 | 16,444,764
Expenses: |  |  |  |
Research and development | 4,599,266 | 5,253,860 | 13,577,075 | 14,213,950
Selling, general and administration | 7,166,137 | 5,344,999 | 21,011,050 | 16,186,946
Total expenses | 15,425,203 | 14,743,743 | 45,807,866 | 41,780,363
Loss from operations | (10,298,873) | (8,604,576) | (29,084,018) | (25,335,599)
Other income and expense: |  |  |  |
Interest income | 160,875 | 191,613 | 486,239 | 611,532
Other income | 241,466 | (109,546) | 1,360,822 | 215,883
Foreign currency transaction (losses) gains | (227,447) | 224,370 | (254,615) | (410,373)
Gain on investments | 0 | 0 | 2,849,816 | 274,000
Total other income and expense | 174,894 | 306,437 | 4,442,262 | 691,042
Loss before (provision) benefit for income taxes and net loss (income) attributable to noncontrolling interest | (10,123,979) | (8,298,139) | (24,641,756) | (24,644,557)
Tax (provision) benefit | 316,000 | (4,500) | 115,000 | 1,141,500
Net loss | (9,807,979) | (8,302,639) | (24,526,756) | (23,503,057)
Net loss (income) attributable to noncontrolling interest | 16,596 | 55,217 | (41,862) | 65,223
Net loss attributable to Kopin Corporation | $ (9,791,383) | $ (8,247,422) | $ (24,568,618) | $ (23,437,834)
Net (loss) income per share |  |  |  |
Basic and diluted (usd per share) | $ (0.13) | $ (0.11) | $ (0.34) | $ (0.34)
Weighted average number of common shares |  |  |  |
Basic and diluted (in shares) | 73,135,253 | 72,187,688 | 73,102,979 | 69,117,640
Product [Member] |  |  |  |
Revenues: |  |  |  |
Research and development revenues | $ 1,482,711 |  | $ 3,563,341 |
Revenues | 3,643,619 | $ 5,589,402 | 13,160,507 | $ 14,501,945
Other income and expense: |  |  |  |
Cost of Goods and Services Sold | 3,659,800 | $ 4,144,884 | 11,219,741 | $ 11,379,467
Net loss attributable to Kopin Corporation | $ (9,791,383) |  | $ (24,568,618) |

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