US2764311A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed joint
Assignee: Individual
•
Filing: 1951-08-27
•
Granted: 1956-09-25
•
Expires: 1971-08-27
Abstract
No abstract record available.
Inventors
- 👤 Glenn R Blackman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:43
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/12; F16J15/121; Y; Y10; Y10S; Y10S285/00; Y10S285/917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US323731A
Cited
US494402A
Cited
US519413A
Cited
GB211185A
Cited
US1969795A
Cited
US2260542A
Cited
US2330425A
Cited
US2599767A
Cited
US2687909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |