US2773294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamps for concrete form tie rods
Assignee: Richmond Screw Anchor Co Inc
•
Filing: 1954-12-06
•
Granted: 1956-12-11
•
Expires: 1974-12-06
Abstract
No abstract record available.
Inventors
- 👤 Alan H Pilling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:54
CPC Classifications
E; E04; E04G; E04G11/00; E04G11/06; E04G11/20; E04G11/22; E04G11/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1380387A
Cited
US1428740A
Cited
US1970946A
Cited
FR855907A
Cited
US2292548A
Cited
US2549393A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |