US3398839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snap-on hanger
Assignee: Central Specialties Co
•
Filing: 1966-10-13
•
Granted: 1968-08-27
•
Expires: 1986-10-13
Abstract
No abstract record available.
Inventors
- 👤 William G Ballenger
- 👤 Robert G Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:13
CPC Classifications
A; A47; A47F; A47F5/00; A47F5/0006; A47F7/00; A47F7/19; A47F7/24; A47G; A47G25/00; A47G25/14; A47G25/28; A47G25/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1066543A
Cited
US2584218A
Cited
GB650516A
Cited
US2634730A
Cited
US3001675A
Cited
US3275003A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |