US2877538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a work supporting structure
Assignee: FARMINGTON Manufacturing Co
•
Filing: 1956-11-08
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Granted: 1959-03-17
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Expires: 1976-11-08
Abstract
No abstract record available.
Inventors
- 👤 John W Coulon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:05
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/06; F16C32/0629; F16C32/064; F16C32/0651; B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/38; F16C2322/00; F16C2322/39; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49639
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US243708A
Cited
US1234878A
Cited
US1743438A
Cited
US2683636A
Cited
US2645534A
Cited
US2617696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |