US2736814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental x-ray film packet holder
Assignee: Individual
•
Filing: 1952-03-21
•
Granted: 1956-02-28
•
Expires: 1972-03-21
Abstract
No abstract record available.
Inventors
- 👤 Lederman Albert
- 👤 Paul B Lederman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:15
CPC Classifications
G; G03; G03B; G03B42/00; G03B42/02; G03B42/04; G03B42/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1906223A
Cited
US2005993A
Cited
US2035051A
Cited
US2522201A
Cited
US2392109A
Cited
US2612609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |