US2563893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for holding and guiding a chain of slides for successive display
Assignee: VITARAMA CORP
•
Filing: 1948-11-17
•
Granted: 1951-08-14
•
Expires: 1968-11-17
Abstract
No abstract record available.
Inventors
- 👤 Waller Fred
- 👤 James C Shields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:58
CPC Classifications
G; G03; G03B; G03B23/00; G03B23/08; G03B23/12; G03B23/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1028692A
Cited
GB177045A
Cited
US1573030A
Cited
FR614494A
Cited
FR617627A
Cited
GB467951A
Cited
US2194240A
Cited
US2391879A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-13 | 1955-02-12 | 1955-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-13 | 1959-02-12 | 1959-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-13 | 1963-02-12 | 1963-08-14 | $7700.00 | Window Closed / Lapsed |