US3370390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall casing
Assignee: BRUCE M LIVERMORE
•
Filing: 1965-01-28
•
Granted: 1968-02-27
•
Expires: 1985-01-28
Abstract
No abstract record available.
Inventors
- 👤 Bruce M Livermore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:54
CPC Classifications
E; E04; E04F; E04F19/00; E04F19/02; E04F19/04; E04F19/0436
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US585106A
Cited
US2151605A
Cited
CA568363A
Cited
US3206806A
Cited
US1055758A
Cited
US1676582A
Cited
US1886320A
Cited
US1950634A
Cited
US2298251A
Cited
US2728957A
Cited
US3047112A
Cited
FR1248986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |