US1956323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating unit
Assignee: REYNOLDS RES CORP
•
Filing: 1931-02-09
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Granted: 1934-04-24
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Expires: 1951-02-09
Abstract
No abstract record available.
Inventors
- 👤 James L Gregg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:45
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; E04B1/78; E04B1/80; E04B1/806; Y; Y10; Y10S; Y10S220/00; Y10S220/09; Y10S229/00; Y10S229/939; Y10T; Y10T428/00; Y10T428/24; Y10T428/24174; Y10T428/24182; Y10T428/24628; Y10T428/24669; Y10T428/24694; Y10T428/24711; Y10T428/24727; Y10T428/24744; Y10T428/31504; Y10T428/31678
Claims Analysis
Total Claims: 0
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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) | 1937-04-23 | 1937-10-23 | 1938-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-04-23 | 1941-10-23 | 1942-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-04-23 | 1945-10-23 | 1946-04-24 | $7700.00 | Window Closed / Lapsed |