Patent US3523518A successfully refreshed from Google Patents.
US3523518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Developer power replenishment means
Assignee: Old Town Corp
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Filing: 1967-12-20
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Granted: 1970-08-11
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Expires: 1987-12-20
Abstract
No abstract record available.
Inventors
- 👤 Ira M Sage
- 👤 Peter P Pungitore
- 👤 Peter J Totino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:20
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/65; G03G15/6517; G03G15/6523; G03B; G03B21/00; G03B21/10; G03B21/11; G03B21/118; G03G15/06; G03G15/08; G03G15/0822; G03G15/22; G03G15/26
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) | 1973-08-10 | 1974-02-09 | 1974-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-10 | 1978-02-09 | 1978-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-10 | 1982-02-09 | 1982-08-11 | $7700.00 | Window Closed / Lapsed |