US1985898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of affixing stamps
Assignee: Du Pont Cellophane Co Inc
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Filing: 1931-07-28
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Granted: 1935-01-01
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Expires: 1951-07-28
Abstract
No abstract record available.
Inventors
- 👤 William L Hyden
- 👤 John C Siemann
- 👤 James E Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:53
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/08; G09F3/10; G09F3/02; G09F2003/0285; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24934; Y10T428/31504; Y10T428/31971; Y10T428/31993
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) | 1937-12-31 | 1938-07-02 | 1939-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-12-31 | 1942-07-02 | 1943-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-12-31 | 1946-07-02 | 1947-01-01 | $7700.00 | Window Closed / Lapsed |