US3016595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Movable arc form and building method
Assignee: Individual
•
Filing: 1957-02-04
•
Granted: 1962-01-16
•
Expires: 1977-02-04
Abstract
No abstract record available.
Inventors
- 👤 Norman H Durst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:52
CPC Classifications
E; E04; E04G; E04G11/00; E04G11/04; Y; Y10; Y10S; Y10S425/00; Y10S425/126
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1103863A
Cited
US1837525A
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US1995692A
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US2314866A
Cited
US2506716A
Cited
US2607100A
Cited
US2633621A
Cited
US2669000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |