US2567390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air ram
Assignee: Individual
•
Filing: 1945-12-08
•
Granted: 1951-09-11
•
Expires: 1965-12-08
Abstract
No abstract record available.
Inventors
- 👤 Theodore E Mead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:34
CPC Classifications
B; B25; B25D; B25D9/00; B25D9/06; B25D9/08; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/20666
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US859843A
Cited
US974267A
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DE369149C
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US1830752A
Cited
US1907538A
Cited
US2050481A
Cited
GB460453A
Cited
US2257267A
Cited
US2290256A
Cited
US2391676A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |