US3196180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted phenylenediamine-alkyl halide condensation products
Assignee: Bridgestone Firestone Inc
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Filing: 1960-11-23
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Granted: 1965-07-20
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Expires: 1980-11-23
Abstract
No abstract record available.
Inventors
- 👤 Harry E Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:52
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
2 words
THE COMPOUNDS
Claim 2
Dependent Claim
2 words
THE COMPOUNDS
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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |