US3090425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple wall sight and sound insulating partition
Assignee: DUBUQUE PRODUCTS Inc
•
Filing: 1961-03-15
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Granted: 1963-05-21
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Expires: 1981-03-15
Abstract
No abstract record available.
Inventors
- 👤 Clarence E Carlo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:58
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/02; E06B9/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A COILABLE WALL OF THE CHARACTER DESCRIBED COMPRISING THE COMBINATION OF A HOUSING HAVING AN OPENING, A PAIR OF REELS JOURNALED IN SAID HOUSING, A JOINTED CURTAIN ATTACHED TO EACH OF SAID REELS FOR WINDING AND UNWINDING, SAID CURTAINS EXTENDING THROUGH THE OPENING IN SAID HOUSING INTO SIDE BY SIDE RELATION AND PROVIDING AN AIR SPACE THEREBETWEEN, AT LEAST ONE OF SAID CURTAINS HAVING A LIGHT AND SIGHT OBSTRUCTING AND SOUND INSULATING SHEET ATTACHED THERETO AND DISPOSED BETWEEN SAID CURTAINS WHEN THEY ARE EXTENDED, SAID JOINTED CURTAINS HAVING OVERLAPPING PORTIONS AT THE JOINTS THEREBY PREVENTING VISION AND
Claim 2
Dependent Claim
97 words
A COILABLE WALL OF THE CHARACTER DESCRIBED COMPRISING THE COMBINATION OF A HOUSING HAVING AN OPENING, A PAIR OF REELS JOURNALED IN SAID HOUSING, A JOINTED CURTAIN ATTACHED TO EACH OF SAID REELS FOR WINDING AND UNWINDING, SAID CURTAINS EXTENDING THROUGH THE OPENING IN SAID HOUSING INTO SIDE BY SIDE RELATION AND PROVIDING AN AIR SPACE THEREBETWEEN, AT LEAST ONE OF SAID CURTAINS HAVING A LIGHT AND SIGHT OBSTRUCTING AND SOUND INSULATING SHEET ATTACHED THERETO AND DISPOSED BETWEEN SAID CURTAINS WHEN THEY ARE EXTENDED, SAID JOINTED CURTAINS HAVING OVERLAPPING PORTIONS AT THE JOINTS THEREBY PREVENTING VISION AND
References Cited (Backward Citations)
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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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |