US2889055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shelf file
Assignee: Individual
•
Filing: 1954-11-15
•
Granted: 1959-06-02
•
Expires: 1974-11-15
Abstract
No abstract record available.
Inventors
- 👤 Weller Walter
- 👤 Bloomstran Hilmer
- 👤 Mary M Oram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:53
CPC Classifications
A; A47; A47B; A47B57/00; A47B57/58; B; B42; B42F; B42F17/00; B42F17/02; B42F17/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US862128A
Cited
US1660088A
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US1704365A
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US2222974A
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US2261840A
Cited
US2516122A
Cited
US2491652A
Cited
US2626063A
Cited
US2688409A
Cited
US2658628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |