US1809243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1927-05-25
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Granted: 1931-06-09
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Expires: 1947-05-25
Abstract
No abstract record available.
Inventors
- 👤 Morris P Kirk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:09
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/0001; G02B6/0011; G02B6/0013; G02B6/0023; G02B6/0031; G02B6/0066; G02B6/007; G02B6/0081; G02B6/0086; G09; G09F; G09F13/00; G09F13/04; G09F13/06; G09F13/0418; G09F2013/05; G09F13/18; G09F2013/184; G09F2013/185
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) | 1934-06-08 | 1934-12-08 | 1935-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-06-08 | 1938-12-08 | 1939-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-06-08 | 1942-12-08 | 1943-06-09 | $7700.00 | Window Closed / Lapsed |