US2889877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protractor shear
Assignee: MICRO MACHINE WORKS Inc
•
Filing: 1957-10-10
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Granted: 1959-06-09
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Expires: 1977-10-10
Abstract
No abstract record available.
Inventors
- 👤 Gavin A Ralston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:03
CPC Classifications
B; B23; B23D; B23D29/00; B23D29/02; B23D29/026; Y; Y10; Y10T; Y10T83/00; Y10T83/748; Y10T83/7593; Y10T83/76; Y10T83/849; Y10T83/853; Y10T83/855; Y10T83/856; Y10T83/857; Y10T83/869; Y10T83/8798; Y10T83/8812
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-08 | 1962-12-08 | 1963-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-08 | 1966-12-08 | 1967-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-08 | 1970-12-08 | 1971-06-09 | $7700.00 | Window Closed / Lapsed |