US2551577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling
Assignee: Individual
•
Filing: 1946-02-13
•
Granted: 1951-05-08
•
Expires: 1966-02-13
Abstract
No abstract record available.
Inventors
- 👤 Cleophas P Baum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:50
CPC Classifications
F; F16; F16G; F16G11/00; F16G11/10; F16G11/02; Y; Y10; Y10T; Y10T403/00; Y10T403/16; Y10T403/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US459185A
Cited
US2172602A
Cited
US1438751A
Cited
US1372238A
Cited
US1645428A
Cited
US1671458A
Cited
US2066956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |