US2800845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic film developer
Assignee: PHOTOGRAMMETRY Inc
•
Filing: 1955-03-15
•
Granted: 1957-07-30
•
Expires: 1975-03-15
Abstract
No abstract record available.
Inventors
- 👤 Willard F Nieth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:25
CPC Classifications
G; G03; G03D; G03D13/00; G03D13/007; G03D13/02; G03D13/04; G03D13/043; G03D3/00; G03D3/02; G03D3/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |