US2879686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anchor bolt having test rod to indicate tension changes
Assignee: Ohio Brass Co
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Filing: 1952-10-31
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Granted: 1959-03-31
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Expires: 1972-10-31
Abstract
No abstract record available.
Inventors
- 👤 Warren J Lewis
- 👤 Elmo F Huston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:26
CPC Classifications
E; E21; E21D; E21D21/00; E21D21/0093; E21D21/02; G; G01; G01B; G01B5/00; G01B5/30; Y; Y10; Y10S; Y10S116/00; Y10S116/34; Y10S116/35
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |