US1738976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for fireproofing cellulose
Assignee: INTERNAT FIREPROOF PRODUCTS CO
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Filing: 1927-03-11
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Granted: 1929-12-10
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Expires: 1947-03-11
Abstract
No abstract record available.
Inventors
- 👤 Vivas Fernando Somoza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:30
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/51; D06M11/55; D06M11/56; D06M11/07; D06M11/11; D06M11/155; D06M11/32; D06M11/36; D06M11/48; D06M11/80; D06M11/82; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921
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) | 1932-12-09 | 1933-06-10 | 1933-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-12-09 | 1937-06-10 | 1937-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-12-09 | 1941-06-10 | 1941-12-10 | $7700.00 | Window Closed / Lapsed |