US3067433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained sewerage system
Assignee: Koehler Aircraft Products Co
•
Filing: 1959-05-20
•
Granted: 1962-12-11
•
Expires: 1979-05-20
Abstract
No abstract record available.
Inventors
- 👤 John W Dietz
- 👤 Donald J Macfadgen
- 👤 Neal C Bossemeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:45
CPC Classifications
E; E03; E03D; E03D5/00; E03D5/016
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1415701A
Cited
US2224868A
Cited
US2280930A
Cited
GB742519A
Cited
FR1145442A
Cited
US2858939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |