Patent US3112301A successfully refreshed from Google Patents.
US3112301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Table
Assignee: —
•
Filing: —
•
Granted: 1963-11-26
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Expires: 1980-11-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:02
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/10; C08F; C08F110/00; C08F110/04; C08F110/06; C08F10/00; C08F10/04; C08F10/06; C08F210/00; C08F210/04; C08F210/06; C08F4/00; C08F4/42; C08F4/44; C08F4/60; C08F4/62; C08F4/64; C08F4/659; C08F4/6592; C08F4/65922; C08F4/65927; C08L23/12; C08F2500/00; C08F2500/03; C08F2500/15; C08L2666/00; C08L2666/02; C08L2666/04; C08L2666/06; Y; Y10; Y10S; Y10S526/00; Y10S526/907; Y10S8/00; Y10S8/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
AS A NEW PRODUCT, POLYPROPYLENE CONSISTING ESSENTIALLY OF POLYPROPYLENE WHICH IS INSOLUBLE IN BOILING ETHYL ETHER, WHICH IS MADE UP OF MACROMOLECULES EACH OF WHICH SHOWS THE ISOTACTIC STEREOREGULAR STRUCTURE, AND WHICH CONSISTS PREVAILINGLY BUT NOT ESSENTIALLY OF ISOTACTIC MACROMOLECULES HAVING SUBSTANTIALLY THE ISOTACTIC STRUCTURE AND BEING INSOLUBLE IN BOILING N-HEPTANE, THE REMAINDER OF SAID MACROMOLECULES BEING SOLUBLE IN BOILING N-HEPTANE.
Claim 2
Dependent Claim
61 words
AS A NEW PRODUCT, POLYPROPYLENE CONSISTING ESSENTIALLY OF POLYPROPYLENE WHICH IS INSOLUBLE IN BOILING ETHYL ETHER, WHICH IS MADE UP OF MACROMOLECULES EACH OF WHICH SHOWS THE ISOTACTIC STEREOREGULAR STRUCTURE, AND WHICH CONSISTS PREVAILINGLY BUT NOT ESSENTIALLY OF ISOTACTIC MACROMOLECULES HAVING SUBSTANTIALLY THE ISOTACTIC STRUCTURE AND BEING INSOLUBLE IN BOILING N-HEPTANE, THE REMAINDER OF SAID MACROMOLECULES BEING SOLUBLE IN BOILING N-HEPTANE.
References Cited (Backward Citations)
US2691647A
Cited
US2825721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |