Patent US3608219A successfully refreshed from Google Patents.
US3608219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Book for holding transparencies for viewing and storage
Assignee: VISIONETICS Inc
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Filing: 1969-05-19
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Granted: 1971-09-28
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Expires: 1989-05-19
Abstract
Abstract MEANS FOR HOLDING TRANSPARENCIES FOR VIEWING AND STORAGE COMPRISING A BOOK INTERLEAVED IN A MANNER SUCH THAT SAID TRANSPARENCIES MAY BE SELECTIVELY VIEWED EITHER INDIVIDUALLY OR SIMULATANEOUSLY IN ANY NUMBER IN ANY DESIRED SEQUENCE. EACH TRANSPARENCY MAY BE PROVIDED, IF DESIRED, WITH AN ACCOMPANYING WRITTEN DIALOGUE.
Inventors
- 👤 Max Verebay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:27
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |