US3157889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion of twin beds to a double bed
Assignee: Individual
•
Filing: 1963-10-22
•
Granted: 1964-11-24
•
Expires: 1983-10-22
Abstract
No abstract record available.
Inventors
- 👤 Martimer L Chanko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:16
CPC Classifications
A; A47; A47C; A47C19/00; A47C19/02; A47C19/028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A DEVICE FOR TRANSFORMING A PAIR OF TWIN BEDS INTO ONE BED COMPRISING: A STRIP OF FLEXIBLE FOAMED MATERIAL OF A WIDTH TO BRIDGE THE SPACE BETWEEN, AND OVERLAP THE ADJACENT MARGINAL TOP SURFACES OF MATTRESSES OF TWIN BEDS IN CLOSELY ADJOINING SUBSTANTIALLY ABUTTING RELATION; A BOTTOM, GENERALLY RECTANGULAR, CENTRAL, DEPENDT RIB ON THE STRIP ENGAGEABLE BETWEEN OPPOSED ADJOINING VERTICAL SIDES OF THE MATTRESSES FOR POSITIONING THE STRIP AS A BRIDGE ACROSS A SPACE BETWEEN THE MAT-
Claim 2
Independent Claim
77 words
A DEVICE FOR TRANSFORMING A PAIR OF TWIN BEDS INTO ONE BED COMPRISING: A STRIP OF FLEXIBLE FOAMED MATERIAL OF A WIDTH TO BRIDGE THE SPACE BETWEEN, AND OVERLAP THE ADJACENT MARGINAL TOP SURFACES OF MATTRESSES OF TWIN BEDS IN CLOSELY ADJOINING SUBSTANTIALLY ABUTTING RELATION; A BOTTOM, GENERALLY RECTANGULAR, CENTRAL, DEPENDT RIB ON THE STRIP ENGAGEABLE BETWEEN OPPOSED ADJOINING VERTICAL SIDES OF THE MATTRESSES FOR POSITIONING THE STRIP AS A BRIDGE ACROSS A SPACE BETWEEN THE MAT-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |