US2551834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective plastic cap
Assignee: PRESSTITE ENGINEERING Co
•
Filing: 1947-06-09
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Granted: 1951-05-08
•
Expires: 1967-06-09
Abstract
No abstract record available.
Inventors
- 👤 William C Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:58
CPC Classifications
F; F16; F16P; F16P1/00; F16P1/02; B; B29; B29C; B29C41/00; B29C41/02; B29C41/14; B29D; B29D1/00; F16B; F16B37/00; F16B37/14; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/947
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1190866A
Cited
US1229928A
Cited
GB259113A
Cited
US1898654A
Cited
US2064042A
Cited
US2304532A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |