US3256535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mattress
Assignee: Individual
•
Filing: 1964-11-18
•
Granted: 1966-06-21
•
Expires: 1984-11-18
Abstract
No abstract record available.
Inventors
- 👤 Michael D Anson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:24
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/002; A47C27/04; A47C27/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A MATTRESS COMPRISING A TOP BORDER WIRE, A BOTTOM BORDER WIRE SPACED FROM SAID TOP BORDER WIRE, A CENTER WIRE BETWEEN SAID TOP BORDER WIRE AND SAID BOTTOM BORDER WIRE, HELICAL SUPPORT SPRINGS EACH HAVING ITS LOWER END DISPOSED GENERALLY IN A PLANE WITH SAID BOTTOM BORDER WIRE AND ITS TOP DISPOSED IN A COMMON PLANE WITH SAID TOP BORDER WIRE, SAID BORDER WIRES BEING IN THE FORM OF LOOPS TANGENT TO THE TURNS OF SAID HELICAL SPRINGS, SAID CENTER WIRE BEING IN THE FORM OF A LOOP SLIGHTLY SMALLER THAN SAID LOOP DEFINED BY SAID TOP AND SAID BOTTOM BORDER WIRES, MEANS ATTACHING SAID COIL SPRINGS TO SAID TOP BORDER WIRE AND TO SAID BOTTOM BORDER WIRE, SHEET LIKE COVER MATERIAL DISPOSED OVER SAID MATTERSS, A PART OF SAID COVER EXTENDING FROM SAID TOP BORDER WIRE TO SAID BOTTOM BORDER WIRE, AND MEANS CONNECTING SAID COVER TO SAID CENTER WIRE.
Claim 2
Dependent Claim
151 words
A MATTRESS COMPRISING A TOP BORDER WIRE, A BOTTOM BORDER WIRE SPACED FROM SAID TOP BORDER WIRE, A CENTER WIRE BETWEEN SAID TOP BORDER WIRE AND SAID BOTTOM BORDER WIRE, HELICAL SUPPORT SPRINGS EACH HAVING ITS LOWER END DISPOSED GENERALLY IN A PLANE WITH SAID BOTTOM BORDER WIRE AND ITS TOP DISPOSED IN A COMMON PLANE WITH SAID TOP BORDER WIRE, SAID BORDER WIRES BEING IN THE FORM OF LOOPS TANGENT TO THE TURNS OF SAID HELICAL SPRINGS, SAID CENTER WIRE BEING IN THE FORM OF A LOOP SLIGHTLY SMALLER THAN SAID LOOP DEFINED BY SAID TOP AND SAID BOTTOM BORDER WIRES, MEANS ATTACHING SAID COIL SPRINGS TO SAID TOP BORDER WIRE AND TO SAID BOTTOM BORDER WIRE, SHEET LIKE COVER MATERIAL DISPOSED OVER SAID MATTERSS, A PART OF SAID COVER EXTENDING FROM SAID TOP BORDER WIRE TO SAID BOTTOM BORDER WIRE, AND MEANS CONNECTING SAID COVER TO SAID CENTER WIRE.
References Cited (Backward Citations)
US125851A
Cited
US1745892A
Cited
US2646580A
Cited
US2978715A
Cited
US3055021A
Cited
US3173159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |