US3469339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interconnecting tubes
Assignee: JOHN M THOMAS
•
Filing: 1966-04-15
•
Granted: 1969-09-30
•
Expires: 1986-04-15
Abstract
No abstract record available.
Inventors
- 👤 John M Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:31
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR1332044A
Cited
US1095858A
Cited
US2709318A
Cited
FR1195407A
Cited
US3043902A
Cited
US3195266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |