US3255060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of treating surfaces of shaped articles of polyacetals with camphorsulfonic acid
Assignee: Hoechst AG
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Filing: 1964-10-20
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Granted: 1966-06-07
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Expires: 1984-10-20
Abstract
No abstract record available.
Inventors
- 👤 Neumann Horst
- 👤 Horndler Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:52
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/14; C08J2359/00; C08J2359/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
PROCESS FOR IMPROVING THE PROPERTY OF BEING BONDED AND LACQUERED OF SURFACES OF SHAPED ARTICLES OF POLYACETALS, WHICH COMPRISES CONTACTING THE DRY SURFACE FOR A PERIOD OF TIME RANGING FROM 15 SECONDS TO 30 MINUTES AT 70 TO 150*C. WITH DRY PULVERULENT CAMPHOR-SULFONIC ACID.
Claim 2
Dependent Claim
44 words
PROCESS FOR IMPROVING THE PROPERTY OF BEING BONDED AND LACQUERED OF SURFACES OF SHAPED ARTICLES OF POLYACETALS, WHICH COMPRISES CONTACTING THE DRY SURFACE FOR A PERIOD OF TIME RANGING FROM 15 SECONDS TO 30 MINUTES AT 70 TO 150*C. WITH DRY PULVERULENT CAMPHOR-SULFONIC ACID.
References Cited (Backward Citations)
US3069287A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |