US1711739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nitrocellulose lacquer for sealing tops of dry cells
Assignee: National Carbon Co Inc
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Filing: 1927-11-21
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Granted: 1929-05-07
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Expires: 1947-11-21
Abstract
No abstract record available.
Inventors
- 👤 Paul A Marsal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:41
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/10; H01M50/183; H01M50/19; H01M50/193; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49108; Y10T29/4911; Y10T29/49115
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) | 1932-05-06 | 1932-11-05 | 1933-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-05-06 | 1936-11-05 | 1937-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-05-06 | 1940-11-05 | 1941-05-07 | $7700.00 | Window Closed / Lapsed |