US3417757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smoking pipes
Assignee: DUNCAN C KILLEN
•
Filing: 1965-10-24
•
Granted: 1968-12-24
•
Expires: 1985-10-24
Abstract
No abstract record available.
Inventors
- 👤 Duncan C Killen
- 👤 Anspach Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:18
CPC Classifications
A; A24; A24F; A24F1/00; A24F2700/00; A24F2700/01
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US402681A
Cited
GB191124226A
Cited
US2192781A
Cited
US2431586A
Cited
US2510909A
Cited
US2590488A
Cited
US2709441A
Cited
US2708442A
Cited
US3204642A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |