US2904290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mirror hinged support
Assignee: Individual
•
Filing: 1955-12-16
•
Granted: 1959-09-15
•
Expires: 1975-12-16
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Mullen
- 👤 Robert E Humphreys
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:02
CPC Classifications
A; A47; A47G; A47G1/00; A47G1/16; A47G1/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US738812A
Cited
US1338781A
Cited
US1861148A
Cited
US2335896A
Cited
US2313532A
Cited
US2603394A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |