US2744756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrostatic holding device
Assignee: Individual
•
Filing: 1954-11-01
•
Granted: 1956-05-08
•
Expires: 1974-11-01
Abstract
No abstract record available.
Inventors
- 👤 Sr George L Atherholt
- 👤 Jr George L Atherholt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:08
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/24; B23B31/30; B23B31/305; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1021; Y10T279/1024; Y10T279/1029; Y10T279/12; Y10T279/1216; Y10T82/00; Y10T82/26; Y10T82/266; Y10T82/268
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1818042A
Cited
US2318838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |