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Patent US2709292A successfully refreshed from Google Patents.
US2709292A
Expired / Lapsed
US
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Clamp for concrete forms
Assignee: Individual
•
Filing: 1951-09-06
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Granted: 1955-05-31
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Expires: 1971-09-06
Abstract
No abstract record available.
Inventors
- 👤 Raymond L Otti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:56
CPC Classifications
E; E04; E04G; E04G17/00; E04G17/06; E04G17/065; E04G17/0651; E04G17/0652; E04G17/07; E04G17/0707; E04G17/0721
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) | 1958-05-30 | 1958-11-29 | 1959-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-30 | 1962-11-29 | 1963-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-30 | 1966-11-29 | 1967-05-31 | $7700.00 | Window Closed / Lapsed |