US2344056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drain valve tank fitting
Assignee: Glenn L Martin Co
•
Filing: 1942-02-27
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Granted: 1944-03-14
•
Expires: 1962-02-27
Abstract
No abstract record available.
Inventors
- 👤 Francis J Pepersack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:59
CPC Classifications
B; B64; B64D; B64D37/00; B64D37/005; Y; Y10; Y10S; Y10S220/00; Y10S220/90
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) | 1947-03-14 | 1947-09-13 | 1948-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-03-14 | 1951-09-13 | 1952-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-03-14 | 1955-09-13 | 1956-03-14 | $7700.00 | Window Closed / Lapsed |