Patent US2054499A successfully refreshed from Google Patents.
US2054499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible shutter and method of making same
Assignee: Individual
•
Filing: 1934-12-28
•
Granted: 1936-09-15
•
Expires: 1954-12-28
Abstract
No abstract record available.
Inventors
- 👤 Florman Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:12
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/16; E06B7/22; E06B9/00; E06B9/02; E06B9/08; E06B9/11; E06B9/13; Y; Y10; Y10S; Y10S264/00; Y10S264/57; Y10S425/00; Y10S425/109; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/2457
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) | 1939-09-15 | 1940-03-16 | 1940-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-09-15 | 1944-03-16 | 1944-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-09-15 | 1948-03-16 | 1948-09-15 | $7700.00 | Window Closed / Lapsed |