US2941276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete core form
Assignee: Individual
•
Filing: 1957-09-17
•
Granted: 1960-06-21
•
Expires: 1977-09-17
Abstract
No abstract record available.
Inventors
- 👤 William L Goodlad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:21
CPC Classifications
E; E04; E04G; E04G15/00; E04G15/06; E04G15/063
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE226604C
Cited
US2733495A
Cited
US1452751A
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US1437297A
Cited
US1517879A
Cited
US1593771A
Cited
US1597163A
Cited
US2148815A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |