US3427775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated structural barrier
Assignee: Galbraith and Sulley Ltd
•
Filing: 1966-12-06
•
Granted: 1969-02-18
•
Expires: 1986-12-06
Abstract
No abstract record available.
Inventors
- 👤 Jakob L Bachrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:35
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; E04B1/7608; E04B1/7612
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA597076A
Cited
US1695298A
Cited
US2231528A
Cited
US2612028A
Cited
GB885722A
Cited
US3296761A
Cited
US3290845A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |