US3529529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for controlling the addition of replenisher to automatic photographic film processors
Assignee: ERNST E SCHUMACHER
•
Filing: 1967-11-29
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Granted: 1970-09-22
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Expires: 1987-11-29
Abstract
No abstract record available.
Inventors
- 👤 Ernst E Schumacher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:01
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/29; G03C5/31; G03D; G03D3/00; G03D3/02; G03D3/06; G03D3/065; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/2496; Y10T137/2499; Y10T137/2509; Y10T436/00; Y10T436/19; Y10T436/193333
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) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |