US2899535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Krall
Assignee: —
•
Filing: —
•
Granted: 1959-08-11
•
Expires: 1976-08-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:01
CPC Classifications
B; B23; B23H; B23H9/00; B23H9/12; F; F16; F16J; F16J15/00; F16J15/02; F16J15/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1260690A
Cited
US2650979A
Cited
US2785280A
Cited
US2761050A
Cited
FR1066737A
Cited
US2773168A
Cited
BE524289A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |