US2780471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable knockdown shelter for ice fishing
Assignee: Individual
•
Filing: 1954-06-03
•
Granted: 1957-02-05
•
Expires: 1974-06-03
Abstract
No abstract record available.
Inventors
- 👤 Harry R Lempke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:48
CPC Classifications
E; E04; E04H; E04H15/00; E04H15/001; Y; Y10; Y10S; Y10S135/00; Y10S135/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US209039A
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US465489A
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US930729A
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US1240006A
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US1409316A
Cited
US1722533A
Cited
US1759117A
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US2301089A
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US2464884A
Cited
US2593809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |