US3516405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aspirator and control therefor
Assignee: RTX Corp
•
Filing: 1967-06-20
•
Granted: 1970-06-23
•
Expires: 1987-06-20
Abstract
No abstract record available.
Inventors
- 👤 James H Hopper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:35
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/71; A61M1/74; A61M1/741; A61M1/76; A61M1/80; A61M1/804; A61M2209/00; A61M2209/08; A61M2209/084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2851213A
Cited
US2900978A
Cited
US2812765A
Cited
US2902708A
Cited
US3085573A
Cited
US3109426A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |