US1610123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manhole-cover lock
Assignee: Lenape Hydraulic Pressing & Fo
•
Filing: 1925-10-31
•
Granted: 1926-12-07
•
Expires: 1945-10-31
Abstract
No abstract record available.
Inventors
- 👤 Charles B Fairweather
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:30
CPC Classifications
E; E02; E02D; E02D29/00; E02D29/12; E02D29/14; E02D29/1427; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6966; Y10T137/6991; Y10T137/6995; Y10T137/7021; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/554; Y10T70/5562; Y10T70/5575; Y10T70/558; Y10T70/5589
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) | 1929-12-06 | 1930-06-07 | 1930-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-12-06 | 1934-06-07 | 1934-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-12-06 | 1938-06-07 | 1938-12-07 | $7700.00 | Window Closed / Lapsed |