Patent US2499141A successfully refreshed from Google Patents.
US2499141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-treatment of webs of textile materials
Assignee: FAIR LAWN FINISHING Co
•
Filing: 1947-12-09
•
Granted: 1950-02-28
•
Expires: 1967-12-09
Abstract
No abstract record available.
Inventors
- 👤 Weldon G Helmus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:25
CPC Classifications
F; F26; F26B; F26B21/00; F26B21/50; D; D06; D06C; D06C29/00; F26B13/00; F26B13/10; F26B21/20; F26B21/25; F26B21/55; Y; Y10; Y10S; Y10S8/00; Y10S8/21
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2065032A
Cited
US1470953A
Cited
US1472450A
Cited
US1601332A
Cited
US1786421A
Cited
US2060430A
Cited
US2012115A
Cited
US1970180A
Cited
US2113770A
Cited
US2157388A
Cited
US2218282A
Cited
US2225166A
Cited
US2268988A
Cited
US2349558A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-27 | 1953-08-29 | 1954-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-27 | 1957-08-29 | 1958-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-27 | 1961-08-29 | 1962-02-28 | $7700.00 | Window Closed / Lapsed |