US3000706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control of bacteriological sterilisation
Assignee: Boots Pure Drug Co Ltd
•
Filing: 1959-04-17
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Granted: 1961-09-19
•
Expires: 1979-04-17
Abstract
No abstract record available.
Inventors
- 👤 Royce Alec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:15
CPC Classifications
C; C12; C12M; C12M37/00; C12M37/06; Y; Y10; Y10T; Y10T436/00; Y10T436/14; Y10T436/142222; Y10T436/19; Y10T436/196666
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
AN INDICATING DEVICE FOR USE IN DETERMINING THE END POINT OF A FUMIGATION OR BACTERIOLOGICAL STERILISATION PROCESS WHICH UTILISES OR BACTERIOLOGICAL STERILISATION PROCGANISM WHICH DEVICE COMPRISES AN AQUEOUS LIQUID INDICATING COMPOSITION CAPABLE OF ABSORBING THE LETHAL GAS THEREBY PRODUCING A CHANGE IN THE COMPOSITION WHICH IS VISIBLY DETECTABLE, THE INDICATING COMPOSITION BEING CONTAINED IN AN ENVELOPE WHICH IS PERMEABLE BY THE GAS BUT IS CHEMICALLY RESISTANT TO THE GAS AND THE INDICATING COMPOSITION.
Claim 2
Dependent Claim
73 words
AN INDICATING DEVICE FOR USE IN DETERMINING THE END POINT OF A FUMIGATION OR BACTERIOLOGICAL STERILISATION PROCESS WHICH UTILISES OR BACTERIOLOGICAL STERILISATION PROCGANISM WHICH DEVICE COMPRISES AN AQUEOUS LIQUID INDICATING COMPOSITION CAPABLE OF ABSORBING THE LETHAL GAS THEREBY PRODUCING A CHANGE IN THE COMPOSITION WHICH IS VISIBLY DETECTABLE, THE INDICATING COMPOSITION BEING CONTAINED IN AN ENVELOPE WHICH IS PERMEABLE BY THE GAS BUT IS CHEMICALLY RESISTANT TO THE GAS AND THE INDICATING COMPOSITION.
References Cited (Backward Citations)
US1735219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |