Patent US2031194A successfully refreshed from Google Patents.
Patent US2603217A successfully refreshed from Google Patents.
US2603217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
mcshirley
Assignee: —
•
Filing: —
•
Granted: 1952-07-15
•
Expires: 1969-07-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:43
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0067; A61M25/0068; A61M25/0074; A61M31/00; A61M25/0069
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US362778A
Cited
US688688A
Cited
US801924A
Cited
US871474A
Cited
US944136A
Cited
US1763079A
Cited
US1853202A
Cited
US2484290A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-15 | 1956-01-14 | 1956-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-15 | 1960-01-14 | 1960-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-15 | 1964-01-14 | 1964-07-15 | $7700.00 | Window Closed / Lapsed |