Patent US3018707A successfully refreshed from Google Patents.
US3018707A
Expired / Lapsed
US
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Photographic lighting apparatus
Assignee: Polaroid Corp
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Filing: 1958-08-07
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Granted: 1962-01-30
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Expires: 1978-08-07
Abstract
No abstract record available.
Inventors
- 👤 Sidney B Whittier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:24
CPC Classifications
F; F21; F21K; F21K5/00; F21K5/02; F21K5/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB373360A
Cited
US2345382A
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US2388995A
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US2646672A
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US2716185A
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US2804537A
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US2727980A
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US2776364A
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US2898447A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-29 | 1965-07-31 | 1966-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-29 | 1969-07-31 | 1970-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-29 | 1973-07-31 | 1974-01-30 | $7700.00 | Window Closed / Lapsed |