US2518399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock washer
Assignee: Thompson Bremer and Co
•
Filing: 1946-06-17
•
Granted: 1950-08-08
•
Expires: 1966-06-17
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:20
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/24; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/956; Y10S411/957
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1373061A
Cited
US1878425A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |