US2448902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nut lock construction
Assignee: Bank of America Corp
•
Filing: 1944-04-03
•
Granted: 1948-09-07
•
Expires: 1964-04-03
Abstract
No abstract record available.
Inventors
- 👤 Wendell R Mckenzie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:04
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/04; F16B37/044; F16B39/00; F16B39/22; F16B39/28; F16B39/36; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/929; Y10S411/935; Y10S411/955; Y10S411/965; Y10S411/971
Claims Analysis
Total Claims: 0
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US2234557A
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US2264561A
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US2384953A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-07 | 1952-03-08 | 1952-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-07 | 1956-03-08 | 1956-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-07 | 1960-03-08 | 1960-09-07 | $7700.00 | Window Closed / Lapsed |