Patent US2928316A successfully refreshed from Google Patents.
US2928316A
Expired / Lapsed
US
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Stereoscopic slide projector
Assignee: Taylor Industries Inc
•
Filing: 1955-05-24
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Granted: 1960-03-15
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Expires: 1975-05-24
Abstract
No abstract record available.
Inventors
- 👤 Castellana Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:57
CPC Classifications
G; G03; G03B; G03B35/00; G03B35/18; G03B35/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2268338A
Cited
US2297532A
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DE926712C
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US2525598A
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US2580874A
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US2746345A
Cited
US2789462A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |