US2911201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light weight structural elements and extended surface
Assignee: Individual
•
Filing: 1955-01-10
•
Granted: 1959-11-03
•
Expires: 1975-01-10
Abstract
No abstract record available.
Inventors
- 👤 Jr John R Gier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:40
CPC Classifications
F; F24; F24D; F24D3/00; B; B21; B21D; B21D53/00; B21D53/02; B21D53/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49373
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2108795A
Cited
US2303369A
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US2571631A
Cited
US2595457A
Cited
US2670936A
Cited
US2614517A
Cited
US2686957A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |