US2464036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter
Assignee: Dollinger Corp
•
Filing: 1943-10-16
•
Granted: 1949-03-08
•
Expires: 1963-10-16
Abstract
No abstract record available.
Inventors
- 👤 Claude F Hasselwander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:23
CPC Classifications
B; B01; B01D; B01D27/00; B01D27/04; B01D27/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US231066A
Cited
US1362522A
Cited
US1502545A
Cited
US1728305A
Cited
US1898027A
Cited
US1898259A
Cited
US1983100A
Cited
US2050581A
Cited
US2016993A
Cited
US2068511A
Cited
US2145535A
Cited
US2218800A
Cited
US2239950A
Cited
US2279423A
Cited
US2239868A
Cited
US2287344A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-07 | 1952-09-06 | 1953-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-07 | 1956-09-06 | 1957-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-07 | 1960-09-06 | 1961-03-08 | $7700.00 | Window Closed / Lapsed |