US1741320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic gate-operating mechanism
Assignee: Individual
•
Filing: 1927-09-24
•
Granted: 1929-12-31
•
Expires: 1947-09-24
Abstract
No abstract record available.
Inventors
- 👤 William S Lee
- 👤 Pfaehler Richard
- 👤 Nabow David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:21
CPC Classifications
E; E02; E02B; E02B7/00; E02B7/20; E02B7/40; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86928; Y10T137/86936
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) | 1932-12-30 | 1933-07-01 | 1933-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-12-30 | 1937-07-01 | 1937-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-12-30 | 1941-07-01 | 1941-12-31 | $7700.00 | Window Closed / Lapsed |