US1896901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor power coupling mechanism
Assignee: NIAGARA SPRAYER Co
•
Filing: 1927-12-02
•
Granted: 1933-02-07
•
Expires: 1947-12-02
Abstract
No abstract record available.
Inventors
- 👤 Knapp Edgar
- 👤 Carl G Allgrunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:48
CPC Classifications
F; F16; F16C; F16C3/00; F16C3/02; F16C3/03; A; A01; A01M; A01M9/00; B; B60; B60K; B60K25/00; B60K25/06; F23; F23D; F23D11/00; F23D11/36; F23D11/40; Y; Y10; Y10S; Y10S56/00; Y10S56/06
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) | 1936-02-07 | 1936-08-08 | 1937-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-02-07 | 1940-08-08 | 1941-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-02-07 | 1944-08-08 | 1945-02-07 | $7700.00 | Window Closed / Lapsed |