US2227511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal and method of making the same
Assignee: Thermal Syndicate Ltd
•
Filing: 1938-08-30
•
Granted: 1941-01-07
•
Expires: 1958-08-30
Abstract
No abstract record available.
Inventors
- 👤 Reynolds Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:10
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/32; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/239; Y10T428/24; Y10T428/24777; Y10T428/26
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) | 1944-01-07 | 1944-07-08 | 1945-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-01-07 | 1948-07-08 | 1949-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-01-07 | 1952-07-08 | 1953-01-07 | $7700.00 | Window Closed / Lapsed |