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US2635840A
Expired / Lapsed
US
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Self-leveling picture frame hanger
Assignee: Individual
•
Filing: 1949-02-24
•
Granted: 1953-04-21
•
Expires: 1969-02-24
Abstract
No abstract record available.
Inventors
- 👤 Barry Arthur William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:24
CPC Classifications
A; A47; A47G; A47G1/00; A47G1/16; A47G1/1606
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB189730232A
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US837221A
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US1115818A
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GB191516946A
Cited
US1269382A
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GB269734A
Cited
US1742140A
Cited
US2103106A
Cited
US2248410A
Cited
US2365108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-20 | 1956-10-20 | 1957-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-20 | 1960-10-20 | 1961-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-20 | 1964-10-20 | 1965-04-21 | $7700.00 | Window Closed / Lapsed |