Patent US3258504A successfully refreshed from Google Patents.
US3258504A
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US
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Pyrolytic preparation of di-p-xylylene
Assignee: Union Carbide Corp
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Filing: 1965-08-04
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Granted: 1966-06-28
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Expires: 1985-08-04
Abstract
No abstract record available.
Inventors
- 👤 Lenaers Rene
- 👤 Hargitay Bartholomew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:50
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/76; C07C2603/00; C07C2603/92; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/942; Y10S585/949; Y10S585/952
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
12 words
PROCESS FOR THE PREPARATION OF DI-P-XYLYLENE WHICH COMPRISES GENERATING THE REACTIVE DIRADICAL
Claim 2
Dependent Claim
12 words
PROCESS FOR THE PREPARATION OF DI-P-XYLYLENE WHICH COMPRISES GENERATING THE REACTIVE DIRADICAL
Claim 3
Dependent Claim
17 words
IN A PROCESS FOR THE PREPARATION OF DI-P-XYLYLENE WHICH INCLUDES THE STEPS OF GENERATING THE REACTIVE DIRADICAL
Claim 4
Dependent Claim
17 words
IN A PROCESS FOR THE PREPARATION OF DI-P-XYLYLENE WHICH INCLUDES THE STEPS OF GENERATING THE REACTIVE DIRADICAL
Claim 5
Dependent Claim
17 words
IN A PROCESS FOR THE PREPARATION OF DI-P-XYLYLENE WHICH INCLUDES THE STEPS OF GENERATING THE REACTIVE DIRADICAL
Claim 6
Dependent Claim
17 words
IN A PROCESS FOR THE PREPARATION OF DI-P-XYLYLENE WHICH INCLUDES THE STEPS OF GENERATING THE REACTIVE DIRADICAL
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) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |