US1626655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-insulating wall
Assignee: Westinghouse Electric Corp
•
Filing: 1923-08-30
•
Granted: 1927-05-03
•
Expires: 1943-08-30
Abstract
No abstract record available.
Inventors
- 👤 James C Woodson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:33
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1930-05-02 | 1930-11-01 | 1931-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-05-02 | 1934-11-01 | 1935-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-05-02 | 1938-11-01 | 1939-05-03 | $7700.00 | Window Closed / Lapsed |