US2383733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube structure
Assignee: Parker Appliance Co
•
Filing: 1941-03-31
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Granted: 1945-08-28
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Expires: 1961-03-31
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 15:54
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/001; F; F16; F16L; F16L11/00; F16L11/04; F16L11/08; F16L11/085; F16L33/00; F16L33/22; F16L33/223; F16L33/224; B29K; B29K2021/00; B29K2105/00; B29K2105/06; Y; Y10; Y10S; Y10S138/00; Y10S138/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-08-27 | 1949-02-26 | 1949-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-08-27 | 1953-02-26 | 1953-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-08-27 | 1957-02-26 | 1957-08-28 | $7700.00 | Window Closed / Lapsed |