Patent US1370035A successfully refreshed from Google Patents.
US1370035A
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US
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Lens-drill
Assignee: American Optical Corp
•
Filing: 1917-08-09
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Granted: 1921-03-01
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Expires: 1937-08-09
Abstract
No abstract record available.
Inventors
- 👤 Moffitt Jeremiah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:47
CPC Classifications
B; B28; B28D; B28D1/00; B28D1/14; B28D1/143; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/561; Y10T408/5614
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1924-02-29 | 1924-08-30 | 1925-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-02-29 | 1928-08-30 | 1929-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-02-29 | 1932-08-30 | 1933-03-01 | $7700.00 | Window Closed / Lapsed |