US671548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for fireproofing paper.
Assignee: Individual
•
Filing: 1900-12-22
•
Granted: 1901-04-09
•
Expires: 1920-12-22
Abstract
No abstract record available.
Inventors
- 👤 Isaac Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:54
CPC Classifications
D; D21; D21H; D21H5/00; D21H5/0002; C; C09; C09K; C09K21/00; C09K21/02; B; B27; B27K; B27K2240/00; B27K2240/30
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) | 1904-04-08 | 1904-10-08 | 1905-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-04-08 | 1908-10-08 | 1909-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-04-08 | 1912-10-08 | 1913-04-09 | $7700.00 | Window Closed / Lapsed |