US2901787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dowel structure including expansion and tapered pin means
Assignee: Individual
•
Filing: 1957-03-06
•
Granted: 1959-09-01
•
Expires: 1977-03-06
Abstract
No abstract record available.
Inventors
- 👤 Sr Lawrence V Whistler
- 👤 Jr Lawrence V Whistler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:39
CPC Classifications
F; F16; F16B; F16B12/00; F16B12/10; F16B12/12; F16B12/24; F16B13/00; F16B13/12; F16B13/124; A; A47; A47B; A47B2230/00; A47B2230/0029; A47B2230/0033; Y; Y10; Y10T; Y10T403/00; Y10T403/55; Y10T403/557
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1810749A
Cited
US1823428A
Cited
US1969426A
Cited
US2100873A
Cited
US2384918A
Cited
US2581240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |