US3453350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mattress and the method for producing same
Assignee: Libresa SA
•
Filing: 1965-11-22
•
Granted: 1969-07-01
•
Expires: 1985-11-22
Abstract
No abstract record available.
Inventors
- 👤 Pierre Maurice Koechlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:57
CPC Classifications
B; B68; B68G; B68G9/00; A; A47; A47C; A47C27/00; A47C27/04; B29; B29C; B29C43/00; B29C43/22; B29C44/00; B29C44/20; B29C44/26; B29C44/32; B29C44/326; B29C44/332
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2874389A
Cited
US3090154A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |