Patent US932395A successfully refreshed from Google Patents.
US1581779A
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Waterproofed, fireproofed paper and method of making the same
Assignee: Atlas Powder Co
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Filing: 1925-01-22
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Granted: 1926-04-20
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Expires: 1945-01-22
Abstract
No abstract record available.
Inventors
- 👤 Brandt Millard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:01
CPC Classifications
D; D21; D21H; D21H21/00; D21H21/14; D21H21/34; D21H17/00; D21H17/63; D21H17/66; D21H21/16; D21H27/00; D21H27/10; D21H5/00; D21H5/0002; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31826; Y10T428/31841
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) | 1929-04-19 | 1929-10-19 | 1930-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-04-19 | 1933-10-19 | 1934-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-04-19 | 1937-10-19 | 1938-04-20 | $7700.00 | Window Closed / Lapsed |