US3828778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable ointment applicator
Assignee: MASTER MOLDED PROD CORP
•
Filing: 1973-01-22
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Granted: 1974-08-13
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Expires: 1993-01-22
Abstract
Abstract An ointment applicator for use by doctors and by women and which is designed for a single use, after which it is discarded for sanitary reasons. The applicator is molded from a suitable plastic material, such as polyethylene, or polypropylene, or polyvinyl chloride, and made in a plurality of parts which are finally assembled when the applicator is to be used. One part is precharged with a prescribed dosage of a medication or ointment which may be discharged into a body cavity when the several parts are finally assembled for use.
Inventors
- 👤 M Weinhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:14
CPC Classifications
A; A61; A61M; A61M31/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
56 words
A disposable ointment applicator as set forth in claim 1 wherein said sliding piston has an inwardly sloping face on the side thereof toward said medication which in operation increases the sealing pressure of the piston on the cylinder walls whereby to facilitate the build-up of pressure on the medication as said snaplock engagement is established.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |