Patent US3593833A successfully refreshed from Google Patents.
Patent US3517856A successfully refreshed from Google Patents.
Patent US1995840A successfully refreshed from Google Patents.
US1995840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Muffler pipe connecter
Assignee: Individual
•
Filing: 1933-04-24
•
Granted: 1935-03-26
•
Expires: 1953-04-24
Abstract
No abstract record available.
Inventors
- 👤 John J Compo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:59
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1805; F16; F16B; F16B2200/00; F16B2200/40; F16B2200/403
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1938-03-25 | 1938-09-24 | 1939-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-03-25 | 1942-09-24 | 1943-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-03-25 | 1946-09-24 | 1947-03-26 | $7700.00 | Window Closed / Lapsed |