Patent US2842121A successfully refreshed from Google Patents.
US2842121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cast forming material and method of making
Assignee: Johnson and Johnson
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Filing: 1955-06-15
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Granted: 1958-07-08
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Expires: 1975-06-15
Abstract
No abstract record available.
Inventors
- 👤 Orman B Billings
- 👤 Brickman Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:08
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/14; A; A61; A61F; A61F13/00; A61F13/04; A61L; A61L15/00; A61L15/07; A61L15/08; C04B2111/00; C04B2111/00474; C04B2111/00836
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A CAST FORMING MATERIAL, USEFUL FOR PRODUCING AN IMMOBILIZING CAST, COMPRISING A FLEXIBLE, PERVIOUS BACKING BONDED TO A SUBSTANTIALLY DRY COMPOSITION COMPRISING ABOUT 5 TO 30% OF POTENTIALLY-REACTIVE MELAMINE-FORMALDEHYDE RESIN AND ABOUT 95 TO 70% OF PLASTER OF PARIS BASED ON THE WEIGHT OF SAID COMPOSITION, SAID CAST FORMING MATERIAL CONTAINING RESIN-CURING CATALYST IN AN AMOUNT IN THE RANGE OF ABOUT 2.5 TO 30% BASED ON THE WEIGHT OF THE RESIN THEREIN, SAID MATERIAL HAVING ONE SURFACE THEREOF COATED TO THE EXTENT OF ABOUT 10 TO 40% OF ITS AREA WITH DISCRETE SMOOTH GLOBULES COMPRISING A DISPERSION OF RESINCURING CATALYST IN POLYETHYLENE GLYCOL HAVING A MOLECULAR WEIGHT IN THE RANGE OF ABOUT 5000 TO 7000.
Claim 2
Dependent Claim
115 words
A CAST FORMING MATERIAL, USEFUL FOR PRODUCING AN IMMOBILIZING CAST, COMPRISING A FLEXIBLE, PERVIOUS BACKING BONDED TO A SUBSTANTIALLY DRY COMPOSITION COMPRISING ABOUT 5 TO 30% OF POTENTIALLY-REACTIVE MELAMINE-FORMALDEHYDE RESIN AND ABOUT 95 TO 70% OF PLASTER OF PARIS BASED ON THE WEIGHT OF SAID COMPOSITION, SAID CAST FORMING MATERIAL CONTAINING RESIN-CURING CATALYST IN AN AMOUNT IN THE RANGE OF ABOUT 2.5 TO 30% BASED ON THE WEIGHT OF THE RESIN THEREIN, SAID MATERIAL HAVING ONE SURFACE THEREOF COATED TO THE EXTENT OF ABOUT 10 TO 40% OF ITS AREA WITH DISCRETE SMOOTH GLOBULES COMPRISING A DISPERSION OF RESINCURING CATALYST IN POLYETHYLENE GLYCOL HAVING A MOLECULAR WEIGHT IN THE RANGE OF ABOUT 5000 TO 7000.
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) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |