US2636634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety cap for pressurized gas tanks
Assignee: Cook Electric Co
•
Filing: 1949-09-08
•
Granted: 1953-04-28
•
Expires: 1969-09-08
Abstract
No abstract record available.
Inventors
- 👤 Charles H Flubacker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:14
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/06; F16; F16J; F16J13/00; F16J13/24; F17C13/12; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0308; F17C2221/00; F17C2221/03; F17C2221/031; F17C2223/00; F17C2223/01; F17C2223/0107; F17C2223/0123; F17C2223/03; F17C2223/035
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1079359A
Cited
US1169335A
Cited
GB333400A
Cited
US2316923A
Cited
US2346723A
Cited
US2436566A
Cited
US2529645A
Cited
US2570818A
Cited
US2544854A
Cited
US2597576A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |