Patent US3378861A successfully refreshed from Google Patents.
US3378861A
Expired / Lapsed
US
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Mattress of novel shape
Assignee: HUBERT JEAN GERARD LOUSBERG
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Filing: 1965-10-22
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Granted: 1968-04-23
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Lousberg Hubert Jean Gerard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:38
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/14; A47C27/142; A47C27/146
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US236116A
Cited
DE355616C
Cited
DE518437C
Cited
US885243A
Cited
US947383A
Cited
US1045228A
Cited
US1888592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |