Patent US2697229A successfully refreshed from Google Patents.
US2697229A
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US
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Inflatable article
Assignee: SUNLAND LATEX PRODUCTS CO
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Filing: 1952-06-07
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Granted: 1954-12-21
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Expires: 1972-06-07
Abstract
No abstract record available.
Inventors
- 👤 Elmer E Krueger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:14
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/20; F16K15/202; A; A41; A41C; A41C3/00; A41C3/10; A41C3/105; A61; A61F; A61F2/00; A61F2/50; A61F2/52; A61F2002/501; Y; Y10; Y10T; Y10T137/00; Y10T137/3584
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) | 1957-12-20 | 1958-06-21 | 1958-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-20 | 1962-06-21 | 1962-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-20 | 1966-06-21 | 1966-12-21 | $7700.00 | Window Closed / Lapsed |