US2053781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for moistureproofing materials
Assignee: Sylvania Industrial Corp
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Filing: 1933-05-13
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Granted: 1936-09-08
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Expires: 1953-05-13
Abstract
No abstract record available.
Inventors
- 👤 Frank H Reichel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:27
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/02; B05D1/12; B05B; B05B13/00; D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/18; B05D2203/00; B05D2203/22; B05D2252/00; B05D2252/02; B05D2501/00; B05D2501/10; B05D3/00; B05D3/02; B05D3/0254
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) | 1939-09-08 | 1940-03-09 | 1940-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-09-08 | 1944-03-09 | 1944-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-09-08 | 1948-03-09 | 1948-09-08 | $7700.00 | Window Closed / Lapsed |