US2717003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double beat or equilibrium valves
Assignee: Chloride Electrical Storage Co Ltd
•
Filing: 1951-03-13
•
Granted: 1955-09-06
•
Expires: 1971-03-13
Abstract
No abstract record available.
Inventors
- 👤 Jay James Bertram
- 👤 White Albert Joseph
- 👤 Hunt Joseph Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:57
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/44; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86759; Y10T137/86767
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1072796A
Cited
US1871299A
Cited
DE506092C
Cited
US2189221A
Cited
US2379109A
Cited
US2466795A
Cited
US2500156A
Cited
US2643090A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-05 | 1959-03-07 | 1959-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-05 | 1963-03-07 | 1963-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-05 | 1967-03-07 | 1967-09-06 | $7700.00 | Window Closed / Lapsed |