US2364221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety support for brake beams
Assignee: Grip Nut Co
•
Filing: 1942-10-10
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Granted: 1944-12-05
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Expires: 1962-10-10
Abstract
No abstract record available.
Inventors
- 👤 Lawrence W Kass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:05
CPC Classifications
B; B61; B61H; B61H13/00; B61H13/34; B61H13/36; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3969
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-12-05 | 1948-06-05 | 1948-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-12-05 | 1952-06-05 | 1952-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-12-05 | 1956-06-05 | 1956-12-05 | $7700.00 | Window Closed / Lapsed |