US2732087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pratt
Assignee: —
•
Filing: —
•
Granted: 1956-01-24
•
Expires: 1973-01-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:18
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/44; B60P1/4414; B60P1/4421; A; A01; A01D; A01D87/00; A01D87/12; A01D87/122
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1314569A
Cited
US1322773A
Cited
US1682352A
Cited
US817370A
Cited
US1345069A
Cited
US2313514A
Cited
US2431877A
Cited
US2427301A
Cited
GB615281A
Cited
US2656058A
Cited
US2501112A
Cited
US2540569A
Cited
US2653678A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |