US2085473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible impervious and weatherproof material
Assignee: Paper Service Co
•
Filing: 1931-01-30
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Granted: 1937-06-29
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Expires: 1951-01-30
Abstract
No abstract record available.
Inventors
- 👤 Rowe William Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:22
CPC Classifications
D; D21; D21H; D21H27/00; D21H27/30; D21H27/40; D21H27/32; D21H27/34; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24446; Y10T428/24455; Y10T428/31504; Y10T428/31815; Y10T428/31819; Y10T428/31823; Y10T442/00; Y10T442/30; Y10T442/3927
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) | 1940-06-28 | 1940-12-28 | 1941-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-06-28 | 1944-12-28 | 1945-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-06-28 | 1948-12-28 | 1949-06-29 | $7700.00 | Window Closed / Lapsed |