US2797602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrostatic holding devices
Assignee: Individual
•
Filing: 1953-06-05
•
Granted: 1957-07-02
•
Expires: 1973-06-05
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
2026-10-28 10:35
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/24; B23B31/30; B23B31/305; Y; Y10; Y10S; Y10S411/00; Y10S411/916; Y10T; Y10T279/00; Y10T279/10; Y10T279/1021; Y10T279/1024; Y10T279/1029; Y10T29/00; Y10T29/47; Y10T82/00; Y10T82/26; Y10T82/266; Y10T82/268
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1818042A
Cited
US2318838A
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US2411229A
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US2393747A
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US2512098A
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US2630039A
Cited
US2612420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |