US2824034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of impregnating a fabric with polyethylene
Assignee: Uniroyal Inc
•
Filing: 1955-09-13
•
Granted: 1958-02-18
•
Expires: 1975-09-13
Abstract
No abstract record available.
Inventors
- 👤 Charles R Worby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:47
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/04; D06N3/045; B; B29; B29C; B29C43/00; B29C43/22; D06B; D06B1/00; D06B1/10; D06B1/14; D06B1/145; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/227
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
THE METHOD OF IMPREGNATING A WEB WITH POLYETHYLENE, WHICH COMPRISES FORMING A SOFTENED FILM CONSISTING ESSENTIALLY OF POLYETHLENE ON A ROLL HEATED TO A TEMPERATURE ABOVE THE MELTING POINT OF SAID POLYETHYLENE, ADVANCING SAID WEB THROUGH A NIP FORMED BY SAID ROLL AND AN ADJACENT SURFACE, SAID NIP HAVING JUST SUFFICIENT CLEARANCE
Claim 2
Independent Claim
52 words
THE METHOD OF IMPREGNATING A WEB WITH POLYETHYLENE, WHICH COMPRISES FORMING A SOFTENED FILM CONSISTING ESSENTIALLY OF POLYETHLENE ON A ROLL HEATED TO A TEMPERATURE ABOVE THE MELTING POINT OF SAID POLYETHYLENE, ADVANCING SAID WEB THROUGH A NIP FORMED BY SAID ROLL AND AN ADJACENT SURFACE, SAID NIP HAVING JUST SUFFICIENT CLEARANCE
References Cited (Backward Citations)
US2054115A
Cited
US2369471A
Cited
US2462331A
Cited
US2551591A
Cited
US2625499A
Cited
US2598090A
Cited
US2714571A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-17 | 1961-08-19 | 1962-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-17 | 1965-08-19 | 1966-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-17 | 1969-08-19 | 1970-02-18 | $7700.00 | Window Closed / Lapsed |