Patent US3411519A successfully refreshed from Google Patents.
US3411519A
Expired / Lapsed
US
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Telescopic collapsible umbrella frame
Assignee: KNIRPS INTERNATIONAL A GERMAN CORP GmbH
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Filing: 1967-06-30
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Granted: 1968-11-19
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Expires: 1987-06-30
Abstract
No abstract record available.
Inventors
- 👤 Weber Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:47
CPC Classifications
A; A45; A45B; A45B19/00; A45B19/04; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7075; Y10T403/7077; Y10T403/7079
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |