US1436739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Evaporator
Assignee: Individual
•
Filing: 1919-03-03
•
Granted: 1922-11-28
•
Expires: 1939-03-03
Abstract
No abstract record available.
Inventors
- 👤 Alfred L Webre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:49
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/26; B01D1/06; B01D1/12; B01D3/00; B01D3/10
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) | 1925-11-27 | 1926-05-29 | 1926-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-11-27 | 1930-05-29 | 1930-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-11-27 | 1934-05-29 | 1934-11-28 | $7700.00 | Window Closed / Lapsed |