US2015796A
Expired / Lapsed
US
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Waterproofing composition and method of making and applying the same
Assignee: J P BRUNT
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Filing: 1931-02-03
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Granted: 1935-10-01
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Expires: 1951-02-03
Abstract
No abstract record available.
Inventors
- 👤 Hans Thomas
- 👤 Charles E Raney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:07
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/63; D21H17/67; D21H17/68; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D21H17/03; D21H17/05; D21H17/14; D21H17/20; D21H17/33; D21H17/34
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) | 1938-09-30 | 1939-04-01 | 1939-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-09-30 | 1943-04-01 | 1943-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-09-30 | 1947-04-01 | 1947-10-01 | $7700.00 | Window Closed / Lapsed |