Patent US2226541A successfully refreshed from Google Patents.
Patent US1487941A successfully refreshed from Google Patents.
Patent US2940153A successfully refreshed from Google Patents.
US2940153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete wall form securing means
Assignee: Individual
•
Filing: 1957-08-09
•
Granted: 1960-06-14
•
Expires: 1977-08-09
Abstract
No abstract record available.
Inventors
- 👤 Allen Homer Edgar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:07
CPC Classifications
E; E04; E04G; E04G17/00; E04G17/02; Y; Y10; Y10S; Y10S425/00; Y10S425/107
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US845635A
Cited
US2017553A
Cited
US2236616A
Cited
US2237366A
Cited
US2632228A
Cited
US2689101A
Cited
US2637889A
Cited
US2711002A
Cited
US2882583A
Cited
US2776464A
Cited
US2904870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |