US3397496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking means for roof and wall panel construction
Assignee: A S K & Associates Inc
•
Filing: 1965-02-04
•
Granted: 1968-08-20
•
Expires: 1985-02-04
Abstract
No abstract record available.
Inventors
- 👤 Lester M Sohns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:55
CPC Classifications
E; E04; E04D; E04D3/00; E04D3/35; E04D3/358; E04B; E04B1/00; E04B1/38; E04B1/541; E04C; E04C2/00; E04C2/02; E04C2/26; E04C2/284; E04C2/292; E04D3/351; E04D3/352; E04D3/355
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1999244A
Cited
US2142305A
Cited
US2962323A
Cited
US2982380A
Cited
US3192671A
Cited
US3243929A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |