US3090430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallic dual thickness partition
Assignee: DUBUQUE PRODUCTS Inc
•
Filing: 1962-05-08
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Granted: 1963-05-21
•
Expires: 1982-05-08
Abstract
No abstract record available.
Inventors
- 👤 Clarence E Carlo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:02
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/02; E06B9/08; E06B9/11; E06B9/13
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
78 words
A MULTIPLE THICKNESS COILABLE PARTITION OF SPACED GENERALLY PARALLEL WALLS, EACH WALL COMPRISING MEMBERS HAVING HINGE FORMING CONNECTIONS INTERLOCKING WITH HINGE FORMING CONNECTIONS OF THE ADJACENT MEMBERS OF THE SAME WALL AND DISPOSED ALONG A LONGITUDINAL CENTER LINE, THE CONNECTIONS OF EACH WALL EXTENDING TOWARD THE OPPOSITE WALL, AND SAID HINGE FORMING CONNECTIONS OF ONE WALL BEING LOCATED IN SPACED RELATION TO THE HINGE FORMING CONNECTIONS OF THE OTHER WALL AND DISPOSED ALONG THE SAME LONGITUDINAL CENTER LINE.
References Cited (Backward Citations)
US1352656A
Cited
FR846036A
Cited
US2739677A
Cited
US2907383A
Cited
US2804136A
Cited
US2934139A
Cited
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 |