US2927626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating blanket for concrete
Assignee: Individual
•
Filing: 1958-02-03
•
Granted: 1960-03-08
•
Expires: 1978-02-03
Abstract
No abstract record available.
Inventors
- 👤 Robert G Corwin
- 👤 Robert G Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:09
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/24; E04G21/28; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1942162A
Cited
US2296553A
Cited
US2770933A
Cited
US2679968A
Cited
US2649101A
Cited
US2779066A
Cited
US2805700A
Cited
US2817123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |