US2720328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nipple constructions
Assignee: Davol Rubber Co
•
Filing: 1951-01-23
•
Granted: 1955-10-11
•
Expires: 1971-01-23
Abstract
No abstract record available.
Inventors
- 👤 John A Clemens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:50
CPC Classifications
A; A61; A61J; A61J11/00; A61J11/02; A61J9/00; A61J9/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190217990A
Cited
US2387573A
Cited
US2426927A
Cited
US2520157A
Cited
GB624266A
Cited
CH256120A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-10 | 1959-04-11 | 1959-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-10 | 1963-04-11 | 1963-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-10 | 1967-04-11 | 1967-10-11 | $7700.00 | Window Closed / Lapsed |