US2040853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window screen shade and ventilator
Assignee: Individual
•
Filing: 1935-04-17
•
Granted: 1936-05-19
•
Expires: 1955-04-17
Abstract
No abstract record available.
Inventors
- 👤 Charles A Kauffman
- 👤 Harold W Davidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:33
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/02; E06B7/08; E06B7/082; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0961; Y10T292/0962; Y10T292/0968; Y10T292/1014; Y10T292/1022; Y10T292/1031
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) | 1939-05-19 | 1939-11-18 | 1940-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-05-19 | 1943-11-18 | 1944-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-05-19 | 1947-11-18 | 1948-05-19 | $7700.00 | Window Closed / Lapsed |