Patent US2216987A successfully refreshed from Google Patents.
US2216987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power transmission
Assignee: WATERBURY TOOL CO
•
Filing: 1936-11-17
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Granted: 1940-10-08
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Expires: 1956-11-17
Abstract
No abstract record available.
Inventors
- 👤 Edwin L Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:49
CPC Classifications
F; F01; F01B; F01B3/00; F01B3/0082; F01B3/0085; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49249; Y10T29/49256; Y10T29/49288; Y10T29/49291; Y10T29/49826; Y10T29/4984; Y10T29/49845; Y10T29/49853; Y10T29/49861; Y10T29/49908; Y10T29/49915; Y10T29/49917; Y10T29/49925; Y10T29/49934; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32631; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18336
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) | 1943-10-08 | 1944-04-08 | 1944-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-10-08 | 1948-04-08 | 1948-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-10-08 | 1952-04-08 | 1952-10-08 | $7700.00 | Window Closed / Lapsed |