US2799201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roof expansion bolt having a flexible strap connecting shell halves for anchoring
Assignee: Individual
•
Filing: 1954-08-03
•
Granted: 1957-07-16
•
Expires: 1974-08-03
Abstract
No abstract record available.
Inventors
- 👤 Albert H Genter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:57
CPC Classifications
E; E21; E21D; E21D21/00; E21D21/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US606925A
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US859532A
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US929979A
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US1034607A
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US1076368A
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US1702920A
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GB402375A
Cited
US2399069A
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US2647431A
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US2667099A
Cited
US2753750A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-15 | 1961-01-14 | 1961-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-15 | 1965-01-14 | 1965-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-15 | 1969-01-14 | 1969-07-16 | $7700.00 | Window Closed / Lapsed |