US2874003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sawhorse
Assignee: Individual
•
Filing: 1954-05-13
•
Granted: 1959-02-17
•
Expires: 1974-05-13
Abstract
No abstract record available.
Inventors
- 👤 Douglas N Humphries
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:56
CPC Classifications
B; B25; B25H; B25H1/00; B25H1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US884280A
Cited
US1518886A
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US1696193A
Cited
CH209946A
Cited
US2412395A
Cited
US2427679A
Cited
US2556261A
Cited
US2669480A
Cited
GB694913A
Cited
US2684276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |