US2879702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exposure control
Assignee: P Gossen and Co GmbH
•
Filing: 1954-05-12
•
Granted: 1959-03-31
•
Expires: 1974-05-12
Abstract
No abstract record available.
Inventors
- 👤 Gossen Hans
- 👤 Kroger Wolf
- 👤 Illing Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:22
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/04; G03B7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2351978A
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US2467946A
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US2576813A
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US2699087A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |