US3357673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete wall form with a particular panel hinge arrangement
Assignee: General Electric Co
•
Filing: 1965-06-30
•
Granted: 1967-12-12
•
Expires: 1985-06-30
Abstract
No abstract record available.
Inventors
- 👤 Walter D Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:55
CPC Classifications
E; E04; E04G; E04G9/00; E04G9/08; E04G11/00; E04G11/06; E04G11/08; E04G11/10; E04G9/02; E04G2009/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US969248A
Cited
US1122771A
Cited
US2017553A
Cited
US2273109A
Cited
US2849780A
Cited
US2976597A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |