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US2829459A
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Assignee: ITEM DEV ENGINEERING ASSOCIATE
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Filing: 1954-10-04
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Granted: 1958-04-08
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Expires: 1974-10-04
Abstract
No abstract record available.
Inventors
- 👤 Halpern Israel Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:12
CPC Classifications
A; A47; A47G; A47G19/00; A47G19/02; A47G19/03; A47G23/00; A47G23/03; Y; Y10; Y10T; Y10T428/00; Y10T428/21; Y10T428/216; Y10T428/24; Y10T428/24479; Y10T428/24802; Y10T428/24893; Y10T428/24901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US437781A
Cited
US476340A
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CH107867A
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FR715967A
Cited
US1915676A
Cited
US1961342A
Cited
US2235798A
Cited
FR919443A
Cited
US2610111A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |