US2458820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple hanger
Assignee: FRED O MARTIN
•
Filing: 1945-09-12
•
Granted: 1949-01-11
•
Expires: 1965-09-12
Abstract
No abstract record available.
Inventors
- 👤 Maximilian E Zimmermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:57
CPC Classifications
A; A47; A47G; A47G25/00; A47G25/14; A47G25/48; A47G25/483; A47G25/485; A47G25/487
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US603544A
Cited
US864114A
Cited
US907258A
Cited
GB191116491A
Cited
FR541967A
Cited
US1557989A
Cited
US1597688A
Cited
US1701688A
Cited
US2102405A
Cited
US2238459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-11 | 1952-07-12 | 1953-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-11 | 1956-07-12 | 1957-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-11 | 1960-07-12 | 1961-01-11 | $7700.00 | Window Closed / Lapsed |