Patent US4651380A successfully refreshed from Google Patents.
Patent US2756168A successfully refreshed from Google Patents.
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
2026-11-08 03:47
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.
References Cited (Backward Citations)
US1090420A
Cited
US1345412A
Cited
US1651083A
Cited
US1817328A
Cited
US1986292A
Cited
US1948568A
Cited
US2023013A
Cited
US1953409A
Cited
US2092321A
Cited
US2448490A
Cited
US2391616A
Cited
US2628204A
Cited
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 |