US2609943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Take-out mechanism
Assignee: HENRY C DAUBENSPECK
•
Filing: 1946-09-28
•
Granted: 1952-09-09
•
Expires: 1966-09-28
Abstract
No abstract record available.
Inventors
- 👤 Samuel E Winder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:41
CPC Classifications
C; C03; C03B; C03B35/00; C03B35/04; C03B35/06; C03B35/12; C03B35/125
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US831352A
Cited
US1211611A
Cited
US1515962A
Cited
US1460211A
Cited
US1461222A
Cited
US1561451A
Cited
US1881825A
Cited
US1821883A
Cited
US1921389A
Cited
US1993650A
Cited
US2025935A
Cited
US2247787A
Cited
US2359433A
Cited
US2349638A
Cited
US2415997A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-09 | 1956-03-10 | 1956-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-09 | 1960-03-10 | 1960-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-09 | 1964-03-10 | 1964-09-09 | $7700.00 | Window Closed / Lapsed |