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US1913283A
Expired / Lapsed
US
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Impregnated paper product
Assignee: EIDP Inc
•
Filing: 1932-03-18
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Granted: 1933-06-06
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Expires: 1952-03-18
Abstract
No abstract record available.
Inventors
- 👤 Frank H Mccormick
- 👤 George L Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:07
CPC Classifications
D; D21; D21J; D21J1/00; Y; Y10; Y10S; Y10S215/00; Y10S215/04; Y10S428/00; Y10S428/904; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249994; Y10T428/31504; Y10T428/31826; Y10T428/31841; Y10T442/00; Y10T442/20; Y10T442/2008
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) | 1936-06-05 | 1936-12-05 | 1937-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-06-05 | 1940-12-05 | 1941-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-06-05 | 1944-12-05 | 1945-06-06 | $7700.00 | Window Closed / Lapsed |