US2553340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal for auxiliary filling nipples
Assignee: Individual
•
Filing: 1947-10-22
•
Granted: 1951-05-15
•
Expires: 1967-10-22
Abstract
No abstract record available.
Inventors
- 👤 Theodore C Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:49
CPC Classifications
F; F16; F16L; F16L15/00; F16L15/006; F16L15/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US634820A
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US784931A
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US860911A
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US1190641A
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US1796077A
Cited
US2150221A
Cited
US2140559A
Cited
US2319410A
Cited
US2399167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |