US2756168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning of small articles
Assignee: AT&T Inc
•
Filing: 1952-03-14
•
Granted: 1956-07-24
•
Expires: 1972-03-14
Abstract
No abstract record available.
Inventors
- 👤 David M Ruggles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:31
CPC Classifications
C; C23; C23G; C23G5/00; C23G5/02; C23G5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
THE METHOD OF CLEANING SMALL FRAGILE ARTICLES COMPRISING PLACING THE ARTICLES IN A CONTAINER, SPRAYING A CLEANING FLUID AGAINST A SURFACE WITHIN SAID CONTAINER DISTANT FROM THE ARTICLES WITH SUFFICIENT FORCE TO BREAK UP THE SPRAY INTO A FINE MIST, AND ALLOWING SAID MIST TO CONDENSE ON THE ARTICLES.
Claim 2
Independent Claim
49 words
THE METHOD OF CLEANING SMALL FRAGILE ARTICLES COMPRISING PLACING THE ARTICLES IN A CONTAINER, SPRAYING A CLEANING FLUID AGAINST A SURFACE WITHIN SAID CONTAINER DISTANT FROM THE ARTICLES WITH SUFFICIENT FORCE TO BREAK UP THE SPRAY INTO A FINE MIST, AND ALLOWING SAID MIST TO CONDENSE ON THE ARTICLES.
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Cited
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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) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |