Patent US2158302A successfully refreshed from Google Patents.
US2158302A
Expired / Lapsed
US
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Anchoring for concrete or the like
Assignee: Individual
•
Filing: 1937-05-01
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Granted: 1939-05-16
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Expires: 1957-05-01
Abstract
No abstract record available.
Inventors
- 👤 Ralph S Peirce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:48
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/04; F16B13/08; F16B13/0858; B; B25; B25B; B25B27/00; B25B27/02; E; E04; E04B; E04B1/00; E04B1/38; E04B1/41
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-05-15 | 1942-11-14 | 1943-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-05-15 | 1946-11-14 | 1947-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-05-15 | 1950-11-14 | 1951-05-16 | $7700.00 | Window Closed / Lapsed |