US2256000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake shoe reinforcing and method of making the same
Assignee: United States Gypsum Co
•
Filing: 1939-02-20
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Granted: 1941-09-16
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Expires: 1959-02-20
Abstract
No abstract record available.
Inventors
- 👤 William M Mcneil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:50
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D69/027; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49705; Y10T29/49801; Y10T29/51; Y10T29/5191; Y10T428/00; Y10T428/12; Y10T428/12326; Y10T428/1234; Y10T428/12347
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) | 1944-09-15 | 1945-03-17 | 1945-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-09-15 | 1949-03-17 | 1949-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-09-15 | 1953-03-17 | 1953-09-16 | $7700.00 | Window Closed / Lapsed |