US3360337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Johnson and Johnson
•
Filing: 1964-12-24
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Granted: 1967-12-26
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Expires: 1984-12-24
Abstract
No abstract record available.
Inventors
- 👤 Martin I Edenbaum
- 👤 Merle I Hampton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:48
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
IN A STEAM STERILIZATION INDICATING DEVICE OF THE TYPE COMPRISING A BASE CONTAINING A MARKING THEREON WHICH CHANGES COLOR WHEN EXPOSED TO THE CONDITIONS OF STEAM STERILIZATION, THE IMPROVEMENT COMPRISING: SAID MARKING COMPRISING A STEAM PERMEABLE CARRIER FILM CONTAINING AN INTIMATE MIXTURE OF ZINC SULFIDE AND LEAD CHLORIDE, SAID ZINC SULFIDE AND LEAD CHLORIDE BEING PRESENT IN AMOUNTS SUFFICIENT TO PROVIDE IN SAID CARRIER FILM AT LEAST 3 PARTS BY WEIGHT OF EQUAL MOLAR EQUIVALENTS OF ZINC SULFIDE AND LEAD CHLORIDE FOR EACH PART BY WEIGHT OF SAID CARRIER.
Claim 2
Dependent Claim
89 words
IN A STEAM STERILIZATION INDICATING DEVICE OF THE TYPE COMPRISING A BASE CONTAINING A MARKING THEREON WHICH CHANGES COLOR WHEN EXPOSED TO THE CONDITIONS OF STEAM STERILIZATION, THE IMPROVEMENT COMPRISING: SAID MARKING COMPRISING A STEAM PERMEABLE CARRIER FILM CONTAINING AN INTIMATE MIXTURE OF ZINC SULFIDE AND LEAD CHLORIDE, SAID ZINC SULFIDE AND LEAD CHLORIDE BEING PRESENT IN AMOUNTS SUFFICIENT TO PROVIDE IN SAID CARRIER FILM AT LEAST 3 PARTS BY WEIGHT OF EQUAL MOLAR EQUIVALENTS OF ZINC SULFIDE AND LEAD CHLORIDE FOR EACH PART BY WEIGHT OF SAID CARRIER.
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) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |