Patent US1962229A successfully refreshed from Google Patents.
Patent US1837555A successfully refreshed from Google Patents.
US1837555A
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Sheet material
Assignee: Individual
•
Filing: 1929-06-28
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Granted: 1931-12-22
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Expires: 1949-06-28
Abstract
No abstract record available.
Inventors
- 👤 Edouard M Kratz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:40
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J2389/00; C08J2389/04; C08J2389/06; C08J2427/00; C08J2431/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/3175; Y10T428/31754; Y10T428/31844; Y10T428/31855; Y10T428/31935
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) | 1934-12-21 | 1935-06-22 | 1935-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-12-21 | 1939-06-22 | 1939-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-12-21 | 1943-06-22 | 1943-12-22 | $7700.00 | Window Closed / Lapsed |