Patent US3413374A successfully refreshed from Google Patents.
US3413374A
Expired / Lapsed
US
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Disproportionation of toluene
Assignee: Toray Industries Inc
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Filing: 1967-04-28
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Granted: 1968-11-26
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Expires: 1987-04-28
Abstract
No abstract record available.
Inventors
- 👤 Sato Masaki
- 👤 Sonoda Takeshi
- 👤 Kinoshita Yukio
- 👤 Mizushima Toshio
- 👤 Kashiwagi Michio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:24
CPC Classifications
C; C07; C07C; C07C6/00; C07C6/08; C07C6/12; C07C6/123; B; B01; B01J; B01J27/00; B01J27/06; C07C2521/00; C07C2521/02; C07C2521/04; C07C2527/00; C07C2527/06; C07C2527/125; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 0
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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) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |