US3240747A
Expired / Lapsed
US
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Process for improving polymer compositions
Assignee: Cabot Corp
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Filing: 1963-03-08
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Granted: 1966-03-15
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Expires: 1983-03-08
Abstract
No abstract record available.
Inventors
- 👤 Richard F Heitmiller
- 👤 Robert W Cottingham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:27
CPC Classifications
C; C08; C08F; C08F10/00; C08F36/00; C08F36/02; C08F36/04; C08F110/00; C08F110/02; C08F110/04; C08F110/06; C08F110/08; Y; Y10; Y10S; Y10S260/00; Y10S260/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
IN THE PROCESS OF POLYMERIZING A SUBSTANCE CHOSEN FROM THE GROUP CONSISTING OF A MONO-OLEFIN, MONOOLEFINS, A DI-OLEFIN, DI-OLEFINS AND MIXTURES THEREOF WITH A CATALYST SYSTEM COMPRISING (A) AN INORGANIC SOLID BEARING CHEMICALLY COMBINED ON THE SURFACE THEREOF STRUCTURES SUCH AS
Claim 2
Dependent Claim
41 words
IN THE PROCESS OF POLYMERIZING A SUBSTANCE CHOSEN FROM THE GROUP CONSISTING OF A MONO-OLEFIN, MONOOLEFINS, A DI-OLEFIN, DI-OLEFINS AND MIXTURES THEREOF WITH A CATALYST SYSTEM COMPRISING (A) AN INORGANIC SOLID BEARING CHEMICALLY COMBINED ON THE SURFACE THEREOF STRUCTURES SUCH AS
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |