Patent US4030970A successfully refreshed from Google Patents.
Patent US1875679A successfully refreshed from Google Patents.
US1875679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick coupler valve
Assignee: Thompson Manufacturing Co
•
Filing: 1928-10-06
•
Granted: 1932-09-06
•
Expires: 1948-10-06
Abstract
No abstract record available.
Inventors
- 👤 Walter Van E Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:48
CPC Classifications
A; A01; A01G; A01G25/00; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86928; Y10T137/87008; Y10T137/87016; Y10T137/8704
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1935-09-06 | 1936-03-07 | 1936-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-09-06 | 1940-03-07 | 1940-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-09-06 | 1944-03-07 | 1944-09-06 | $7700.00 | Window Closed / Lapsed |