US2463131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accounting tray
Assignee: CHARLES R HADLEY Co
•
Filing: 1945-04-09
•
Granted: 1949-03-01
•
Expires: 1965-04-09
Abstract
No abstract record available.
Inventors
- 👤 Robert R Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:34
CPC Classifications
G; G07; G07D; G07D9/00; G07D9/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US522237A
Cited
US1257299A
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US1375794A
Cited
GB174840A
Cited
DE373396C
Cited
GB189251A
Cited
US1839902A
Cited
DE579728C
Cited
US1918664A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-29 | 1952-08-30 | 1953-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-29 | 1956-08-30 | 1957-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-29 | 1960-08-30 | 1961-03-01 | $7700.00 | Window Closed / Lapsed |