US2670984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crate
Assignee: Individual
•
Filing: 1952-02-12
•
Granted: 1954-03-02
•
Expires: 1972-02-12
Abstract
No abstract record available.
Inventors
- 👤 Oscar F Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:30
CPC Classifications
F; F42; F42B; F42B39/00; F42B39/26; B; B65; B65D; B65D71/00; B65D71/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1369323A
Cited
US1762271A
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US1991481A
Cited
US2235719A
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US2487687A
Cited
US2452392A
Cited
US2466875A
Cited
US2546830A
Cited
US2530797A
Cited
US2556844A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-01 | 1957-08-31 | 1958-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-01 | 1961-08-31 | 1962-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-01 | 1965-08-31 | 1966-03-02 | $7700.00 | Window Closed / Lapsed |