Patent US3424795A successfully refreshed from Google Patents.
US3424795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alpha,alpha'-bis(aminoaryl)-xylenes
Assignee: Honeywell International Inc
•
Filing: 1963-07-25
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Granted: 1969-01-28
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Expires: 1983-07-25
Abstract
No abstract record available.
Inventors
- 👤 Richard B Lund
- 👤 John Vitrone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:17
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/26; C07; C07C; C07C209/00; C07C209/68; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/30; C08G18/32; C08G18/3203; C08G18/3206; C08G18/70; C08G18/72; C08G18/74; C08G18/76; C08G18/7657; C08G18/7664; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/5033
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
COMPOUNDS HAVING THE FORMULA:
Claim 2
Dependent Claim
4 words
COMPOUNDS HAVING THE FORMULA:
References Cited (Backward Citations)
GB204722A
Cited
DE557517C
Cited
US2034491A
Cited
US2548982A
Cited
US2683730A
Cited
US2766263A
Cited
US3200152A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |