US2443589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking means for floor armor
Assignee: BEULAH H BATES
•
Filing: 1944-05-10
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Granted: 1948-06-22
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Expires: 1964-05-10
Abstract
No abstract record available.
Inventors
- 👤 Walter A Bates
- 👤 Jr Walter A Bates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:19
CPC Classifications
E; E01; E01C; E01C11/00; E01C11/16; E01C11/18; E01C11/185; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/4962
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189523074A
Cited
US854927A
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US882491A
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US1103034A
Cited
US1707533A
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DE490121C
Cited
US1983412A
Cited
US2102302A
Cited
US2282519A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-22 | 1951-12-22 | 1952-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-22 | 1955-12-22 | 1956-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-22 | 1959-12-22 | 1960-06-22 | $7700.00 | Window Closed / Lapsed |