US1557730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a fibrous mass impregnated with a phenolic condensation product
Assignee: PRODUCTS PROT CORP
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Filing: 1921-02-15
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Granted: 1925-10-20
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Expires: 1941-02-15
Abstract
No abstract record available.
Inventors
- 👤 Franklin S Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:27
CPC Classifications
F; F26; F26B; F26B3/00; F26B3/32; F26B3/34; C; C08; C08J; C08J5/00; C08J5/24; C08J5/245; F26B13/00; F26B13/001; C08J2361/00; C08J2361/04; C08J2361/06; Y; Y10; Y10S; Y10S118/00; Y10S118/22
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) | 1928-10-19 | 1929-04-20 | 1929-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-10-19 | 1933-04-20 | 1933-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-10-19 | 1937-04-20 | 1937-10-20 | $7700.00 | Window Closed / Lapsed |