US2531100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulator
Assignee: Garrett Corp
•
Filing: 1947-09-29
•
Granted: 1950-11-21
•
Expires: 1967-09-29
Abstract
No abstract record available.
Inventors
- 👤 Robert A Arthur
- 👤 James M Kemper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:03
CPC Classifications
B; B64; B64D; B64D13/00; B64D13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1680750A
Cited
US1901805A
Cited
US2450881A
Cited
GB563553A
Cited
US2441088A
Cited
US2441089A
Cited
US2402681A
Cited
US2436183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |