US3492205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distillation system and method
Assignee: ROBERT C WEBBER
•
Filing: 1967-11-17
•
Granted: 1970-01-27
•
Expires: 1987-11-17
Abstract
No abstract record available.
Inventors
- 👤 Robert C Webber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:48
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/16; C02F1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2305640A
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US2389789A
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US2451682A
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US3091098A
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US3284318A
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US3203875A
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US3311543A
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US3399118A
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US3234109A
Cited
US3312078A
Cited
US3300392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |