US3840510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Formation of elastic and high-tenacity fibers from butene-1 homopolymers and copolymers
Assignee: Mobil Oil AS
•
Filing: 1972-06-05
•
Granted: 1974-10-08
•
Expires: 1992-06-05
Abstract
Abstract 1. AN ELASTIC FIBERS OF TACTIC POLYBUTENE-1, A TACTIC RANDOM COPOLYMER OF BUTENE-1 AND UP TO 20 MOLE PERCENT ETHYLENE, OR A TACTIC COPOLYMER OF BUTENE-1 AND UP TO 20 MOLE PERCENT PROPYLENE, WHEREIN THE F110 OF THE FIBER IN FORM 1 IS BETWEEN ABOUT 0.5 AND 0.965.
Inventors
- 👤 C Rohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:59
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/02; D01F6/04; D01F6/28; D01F6/30; C; C08; C08L; C08L2203/00; C08L2203/12; C08L23/00; C08L23/02; C08L23/18; C08L23/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
AN ELASTIC FIBERS OF TACTIC POLYBUTENE-1, A TACTIC RANDOM COPOLYMER OF BUTENE-1 AND UP TO 20 MOLE PERCENT ETHYLENE, OR A TACTIC COPOLYMER OF BUTENE-1 AND UP TO 20 MOLE PERCENT PROPYLENE, WHEREIN THE F110 OF THE FIBER IN FORM 1 IS BETWEEN ABOUT 0.5 AND 0.965.
Claim 2
Dependent Claim
47 words
AN ELASTIC FIBERS OF TACTIC POLYBUTENE-1, A TACTIC RANDOM COPOLYMER OF BUTENE-1 AND UP TO 20 MOLE PERCENT ETHYLENE, OR A TACTIC COPOLYMER OF BUTENE-1 AND UP TO 20 MOLE PERCENT PROPYLENE, WHEREIN THE F110 OF THE FIBER IN FORM 1 IS BETWEEN ABOUT 0.5 AND 0.965.
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) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |