Patent US2859194A successfully refreshed from Google Patents.
US2859194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of dialkyl oxalates in vinylidene resins
Assignee: Bridgestone Firestone Inc
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Filing: 1954-02-23
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Granted: 1958-11-04
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Expires: 1974-02-23
Abstract
No abstract record available.
Inventors
- 👤 Robert J Reid
- 👤 Jr William Mayo Smith
- 👤 Byron H Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:59
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/02; D01F6/08; D01F6/10; D01F1/00; D01F1/02; D01F1/10; D01F6/28; D01F6/32
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
74 words
A RESIN COMPOSITION WHICH INCLUDES A CRYSTALLINE POLYMERIC RESIN SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF VINYLIDENE CHLORIDE AND COPOLYMERS THEREOF WITH UP TO 15 PERCENT OF OTHER ETHYLENICALLY UNSATURATED MONOMER, AND AS A PROCESSING AID A DIALKYL OXALATE IN THE RANGE OF DIPROPYL TO DIHEPTYL OXALATES, THE AMOUNT OF THE OXALATE BEING SUBSTANTIAL BUT NOT IN EXCESS OF ABOUT 10 PERCENT, SAID PERCENTAGES REFERRING TO PERCENTAGES BY WEIGHT OF THE POLYMERIC RESIN.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |