US3418767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall structure with expellable insert
Assignee: Individual
•
Filing: 1966-03-22
•
Granted: 1968-12-31
•
Expires: 1986-03-22
Abstract
No abstract record available.
Inventors
- 👤 Seeger Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:08
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/10; B28B7/12; E; E04; E04B; E04B5/00; E04B5/16; E04B5/17; E04B5/18; E04G; E04G11/00; E04G11/36; E04G11/40; E04G11/46; E04G15/00; E04G19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1444709A
Cited
US2288559A
Cited
US2341700A
Cited
US2480477A
Cited
US2850785A
Cited
US2967467A
Cited
US3023464A
Cited
US3061904A
Cited
US3151374A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |