US3394639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion joint
Assignee: EMEH Inc
•
Filing: 1966-05-24
•
Granted: 1968-07-30
•
Expires: 1986-05-24
Abstract
No abstract record available.
Inventors
- 👤 George A Viehmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:48
CPC Classifications
E; E01; E01D; E01D19/00; E01D19/06; E01D19/065; E01C; E01C11/00; E01C11/02; E01C11/04; E01C11/12; E01C11/126; E04; E04B; E04B1/00; E04B1/62; E04B1/66; E04B1/68; E04B1/681
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2151605A
Cited
US2043571A
Cited
US2135048A
Cited
US2577997A
Cited
US2976782A
Cited
US3183626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |