US2636770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lifting and carrying clamp for handling stone slabs
Assignee: Cold Spring Granite Co
•
Filing: 1950-12-08
•
Granted: 1953-04-28
•
Expires: 1970-12-08
Abstract
No abstract record available.
Inventors
- 👤 Cornwell Ted Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:00
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/42; B66C1/44; B66C1/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US291248A
Cited
US307453A
Cited
US387109A
Cited
US855989A
Cited
US865444A
Cited
US1221400A
Cited
US1535022A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |