Patent US2525166A successfully refreshed from Google Patents.
US2525166A
Expired / Lapsed
US
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Process for the stripping of mirror backing and composition of matter useful in suchprocess
Assignee: Turco Products Inc
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Filing: 1947-01-17
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Granted: 1950-10-10
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Expires: 1967-01-17
Abstract
No abstract record available.
Inventors
- 👤 Keith E Brown
- 👤 Francis E Clark
- 👤 Clark E Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:03
CPC Classifications
C; C03; C03C; C03C23/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
48 words
A PROCESS FOR STRIPPING MIRRORS WHICH COMPRISES IMMERSING SAID MIRRORS IN AN ALKALINE WATER SOLUTION OF A SALT OF AN ORGANIC COMPOUND CONTAINING A CSH GROUP AND AN ORGANIC COATING SOLVENT REMOVER AT A TEMPERATURE RANGING FROM ATMOSPHERIC TO 200*F., AND STRIPPING THE MIRROR FILM FROM SAID MIRROR.
References Cited (Backward Citations)
US242338A
Cited
US2406458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |