US1808944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool coupler
Assignee: HENRY DALZELL WILSON
•
Filing: 1929-01-30
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Granted: 1931-06-09
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Expires: 1949-01-30
Abstract
No abstract record available.
Inventors
- 👤 Ray W Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:48
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/117; B23Q; B23Q5/00; B23Q5/02; B23Q5/04; B23Q5/043; B23Q5/045; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17205; Y10T279/17411; Y10T279/17418; Y10T279/17444; Y10T279/17863; Y10T279/17871; Y10T279/17881
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) | 1934-06-08 | 1934-12-08 | 1935-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-06-08 | 1938-12-08 | 1939-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-06-08 | 1942-12-08 | 1943-06-09 | $7700.00 | Window Closed / Lapsed |