US2467080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Base for tables
Assignee: Individual
•
Filing: 1948-10-21
•
Granted: 1949-04-12
•
Expires: 1968-10-21
Abstract
No abstract record available.
Inventors
- 👤 Frederick L Duer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:45
CPC Classifications
A; A47; A47B; A47B13/00; A47B13/02; A47B13/06; A47B2013/026
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US353137A
Cited
FR452538A
Cited
US1162147A
Cited
US1133804A
Cited
US1183645A
Cited
US1199778A
Cited
US1380042A
Cited
US1924989A
Cited
US1951499A
Cited
US1997660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-11 | 1952-10-11 | 1953-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-11 | 1956-10-11 | 1957-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-11 | 1960-10-11 | 1961-04-12 | $7700.00 | Window Closed / Lapsed |