US2977659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for securing concrete wall forms in position
Assignee: Individual
•
Filing: 1958-09-16
•
Granted: 1961-04-04
•
Expires: 1978-09-16
Abstract
No abstract record available.
Inventors
- 👤 Frank M Buxton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:39
CPC Classifications
E; E04; E04G; E04G17/00; E04G17/06; E04G17/07; E04G17/0707; E04G17/0721
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1552912A
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US1689151A
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US2001052A
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US2307274A
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US2273198A
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US2358975A
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US2572366A
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US2763048A
Cited
US2902744A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |