Patent US1919780A successfully refreshed from Google Patents.
US1919780A
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Coupling
Assignee: PHILIP RAHN
•
Filing: 1931-05-01
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Granted: 1933-07-25
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Expires: 1951-05-01
Abstract
No abstract record available.
Inventors
- 👤 Fairbank Roswell Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:34
CPC Classifications
F; F16; F16B; F16B5/00; F16B5/06; F16B5/0607; E; E04; E04B; E04B1/00; E04B1/38; E04B1/61; E04B1/6108; E04B1/6116; E04B1/612; E04B1/6125; Y; Y10; Y10S; Y10S403/00; Y10S403/13; Y10T; Y10T292/00; Y10T292/71; Y10T403/00; Y10T403/46; Y10T403/4602; Y10T403/50; Y10T403/66; Y10T403/70; Y10T403/7075
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) | 1936-07-24 | 1937-01-23 | 1937-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-07-24 | 1941-01-23 | 1941-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-07-24 | 1945-01-23 | 1945-07-25 | $7700.00 | Window Closed / Lapsed |