Patent US2979422A successfully refreshed from Google Patents.
US2979422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating process
Assignee: Individual
•
Filing: 1958-03-07
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Granted: 1961-04-11
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Expires: 1978-03-07
Abstract
No abstract record available.
Inventors
- 👤 Bersin Theodor
- 👤 Muller Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:51
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A METHOD OF COATING A HYDROPHOBIC SYNTHETIC PLASTIC SUBSTANCE WHICH HAS BEEN TREATED TO HAVE ANIONIC GROUPS ON ITS SURFACE AND TO HAVE AN MBR VALUE WITHIN THE RANGE OF 0.08 TO 0.25, COMPRISING THE STEPS OF: APPLYING AN AQUEOUS SOLUTION OF A WATER-SOLUBLE PROTEIN HAVING A CONCENTRATION OF PROTEIN OF 1% TO 5% BY WEIGHT, TO THE SURFACE OF THE PLASTIC WHEREBY THE PROTEIN IS BOUND TO THE SURFACE OF THE PLASTIC, AND DRYING THE PROTEIN COATED SURFACE.
Claim 2
Independent Claim
79 words
A METHOD OF COATING A HYDROPHOBIC SYNTHETIC PLASTIC SUBSTANCE WHICH HAS BEEN TREATED TO HAVE ANIONIC GROUPS ON ITS SURFACE AND TO HAVE AN MBR VALUE WITHIN THE RANGE OF 0.08 TO 0.25, COMPRISING THE STEPS OF: APPLYING AN AQUEOUS SOLUTION OF A WATER-SOLUBLE PROTEIN HAVING A CONCENTRATION OF PROTEIN OF 1% TO 5% BY WEIGHT, TO THE SURFACE OF THE PLASTIC WHEREBY THE PROTEIN IS BOUND TO THE SURFACE OF THE PLASTIC, AND DRYING THE PROTEIN COATED SURFACE.
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) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |