US2529495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating film or the like
Assignee: Individual
•
Filing: 1947-10-31
•
Granted: 1950-11-14
•
Expires: 1967-10-31
Abstract
No abstract record available.
Inventors
- 👤 William R Harlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:36
CPC Classifications
G; G03; G03D; G03D3/00; G03D3/02; G03D3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE641973C
Cited
US1205708A
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US1254300A
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DE522639C
Cited
US2004410A
Cited
FR807882A
Cited
US2242600A
Cited
US2187948A
Cited
US2259259A
Cited
US2349026A
Cited
US2393654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-13 | 1954-05-15 | 1954-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-13 | 1958-05-15 | 1958-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-13 | 1962-05-15 | 1962-11-14 | $7700.00 | Window Closed / Lapsed |