US2842999A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion bolt with coil spring having overlapping convolutions and outwardly extending edge
Assignee: Ohio Brass Co
•
Filing: 1954-08-06
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Granted: 1958-07-15
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Expires: 1974-08-06
Abstract
No abstract record available.
Inventors
- 👤 Elmo F Huston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:38
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/04; F16B13/06; F16B13/061; E; E21; E21D; E21D21/00; E21D21/008; F16B13/063; F16B13/066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1320622A
Cited
US1212298A
Cited
US1419979A
Cited
US1666805A
Cited
US2649830A
Cited
US2690693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |