US3219099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary evaporator and separator
Assignee: Individual
•
Filing: 1961-08-11
•
Granted: 1965-11-23
•
Expires: 1981-08-11
Abstract
No abstract record available.
Inventors
- 👤 Harlan P Hamlow
- 👤 Rapoport Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:19
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/08; B01D3/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US440752A
Cited
US2536676A
Cited
US2575688A
Cited
US2797747A
Cited
US2865445A
Cited
FR1208225A
Cited
US3034573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |