US3372501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic display sign
Assignee: Individual
•
Filing: 1966-02-23
•
Granted: 1968-03-12
•
Expires: 1986-02-23
Abstract
No abstract record available.
Inventors
- 👤 George B Greene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:44
CPC Classifications
G; G09; G09F; G09F9/00; G09F9/30; G09F9/37; G09F9/377; G09G; G09G3/00; G09G3/04; G09G3/16; Y; Y10; Y10S; Y10S116/00; Y10S116/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A DISPLAY COMPRISING: A CASING HAVING A TRANSLUCENT WINDOW; A DIAPHRAGM MOUNTED TO DIVIDE SAID CASING INTO OPPOSED CHAMBERS AND SO ARRANGED AS TO BE MOVABLE TO LIE ADJACENT SAID WINDOW OR REMOTE THEREFROM; AN INDICIA CARRIED BY SAID DIAPHRAGM; AND MEANS FOR APPLYING A FLUID PRESSURE TO SAID DIAPHRAGM TO MOVE THE SAME, SAID MEANS FOR APPLYING A FLUID PRESSURE COMPRISING FIRST AND SECOND FLUID CONDUITS EACH OF WHICH COMMUNICATES WITH ONE OF SAID OPPOSED CHAMBERS.
Claim 2
Dependent Claim
77 words
A DISPLAY COMPRISING: A CASING HAVING A TRANSLUCENT WINDOW; A DIAPHRAGM MOUNTED TO DIVIDE SAID CASING INTO OPPOSED CHAMBERS AND SO ARRANGED AS TO BE MOVABLE TO LIE ADJACENT SAID WINDOW OR REMOTE THEREFROM; AN INDICIA CARRIED BY SAID DIAPHRAGM; AND MEANS FOR APPLYING A FLUID PRESSURE TO SAID DIAPHRAGM TO MOVE THE SAME, SAID MEANS FOR APPLYING A FLUID PRESSURE COMPRISING FIRST AND SECOND FLUID CONDUITS EACH OF WHICH COMMUNICATES WITH ONE OF SAID OPPOSED CHAMBERS.
References Cited (Backward Citations)
US3091876A
Cited
US3237591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |