US2015680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Evaporator
Assignee: Buffalo Foundry & Machine Co
•
Filing: 1934-05-03
•
Granted: 1935-10-01
•
Expires: 1954-05-03
Abstract
No abstract record available.
Inventors
- 👤 Martin J Kermer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:38
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/30; B01D1/305; B01D1/06; B01D1/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1938-09-30 | 1939-04-01 | 1939-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-09-30 | 1943-04-01 | 1943-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-09-30 | 1947-04-01 | 1947-10-01 | $7700.00 | Window Closed / Lapsed |