Patent US3531345A successfully refreshed from Google Patents.
US3531345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Repair of automotive exhaust system
Assignee: THEODORE M TOROSIAN
•
Filing: 1968-11-08
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Granted: 1970-09-29
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Expires: 1988-11-08
Abstract
No abstract record available.
Inventors
- 👤 Theodore M Torosian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:17
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N2450/00; F01N2450/08; F01N2450/28; F01N2470/00; F01N2470/10; F01N2530/00; F01N2530/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2795523A
Cited
US3235289A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |