US2720463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gelatin capsule casting composition preparation
Assignee: Wyeth Holdings LLC
•
Filing: 1950-11-17
•
Granted: 1955-10-11
•
Expires: 1970-11-17
Abstract
No abstract record available.
Inventors
- 👤 Stirn Frank Edwin
- 👤 Taylor Arthur Sinclair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:57
CPC Classifications
C; C09; C09H; C09H9/00; C09H9/02; Y; Y10; Y10S; Y10S264/00; Y10S264/37
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
IN AN APPARATUS FOR PREPARING A CASTABLE GELATIN FORMULATION; A VACUUM TIGHT MIXER, A HEATING JACKET FOR SAID MIXER, MEANS FOR ADDING LIQUIDS TO SAID MIXER, MEANS FOR ADDING POWDERED SOLIDS TO SAID MIXTER, MEANS FOR AGITATING THE CONTENTS OF SAID MIXER, A VACUUM SOURCE, A SOURCE OF GASEOUS PRESSURE, MEANS FOR CONNECTING SAID SOURCE OF GASEOUS PRESSURE AND SAID VACUUM SOURCE TO SAID MIXER, A DISCHARGE LINE CONNECTED TO THE BOTTOM OF SAID MIXER, HEATING MEANS FOR SAID DISCHARGE LINE, A STORAGE TANK, A HEATING JACKET FOR SAID STORAGE TANK, A
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) | 1958-10-10 | 1959-04-11 | 1959-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-10 | 1963-04-11 | 1963-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-10 | 1967-04-11 | 1967-10-11 | $7700.00 | Window Closed / Lapsed |