US2672314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article hanger
Assignee: Individual
•
Filing: 1952-03-12
•
Granted: 1954-03-16
•
Expires: 1972-03-12
Abstract
No abstract record available.
Inventors
- 👤 Frank L Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:10
CPC Classifications
A; A47; A47G; A47G1/00; A47G1/16; A47G1/1653; A47G7/00; A47G7/02; A47G7/04; A47G7/044; A47G7/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1308066A
Cited
US1209184A
Cited
US2319059A
Cited
US2275071A
Cited
US2327519A
Cited
US2479115A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |