Patent US3351964A successfully refreshed from Google Patents.
US3351964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inner spring mattress and handle combination
Assignee: Individual
•
Filing: 1966-06-21
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Granted: 1967-11-14
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Expires: 1986-06-21
Abstract
No abstract record available.
Inventors
- 👤 Michael D Anson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:26
CPC Classifications
A; A47; A47C; A47C31/00; A47C31/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 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 SRINGS 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,
Claim 2
Dependent Claim
102 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 SRINGS 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,
References Cited (Backward Citations)
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US2646580A
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US2782428A
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US2798715A
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US3055021A
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US3173159A
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US3256535A
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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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |