US2436882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double reversible film developing hanger
Assignee: HARRY R MEREDITH
•
Filing: 1945-06-01
•
Granted: 1948-03-02
•
Expires: 1965-06-01
Abstract
No abstract record available.
Inventors
- 👤 Edward S Edelhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:52
CPC Classifications
G; G03; G03D; G03D13/00; G03D13/02; G03D13/08; G03D13/12; G03D13/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US837221A
Cited
US1019320A
Cited
AT84954B
Cited
US1877036A
Cited
US2118738A
Cited
US2170465A
Cited
US2290831A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-02 | 1951-09-01 | 1952-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-02 | 1955-09-01 | 1956-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-02 | 1959-09-01 | 1960-03-02 | $7700.00 | Window Closed / Lapsed |