US2645340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supporting device involving an elastic member
Assignee: Air Way Electric Appliance Corp
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Filing: 1949-07-15
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Granted: 1953-07-14
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Expires: 1969-07-15
Abstract
No abstract record available.
Inventors
- 👤 Dewey M Dow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:43
CPC Classifications
B; B65; B65D; B65D73/00; B65D73/0007; B65D73/0014; B25; B25H; B25H3/00; B25H3/04
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) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |