Patent US3438386A successfully refreshed from Google Patents.
US3438386A
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US
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Two liquid measuring devices
Assignee: Hollis Engineering Inc
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Filing: 1967-07-05
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Granted: 1969-04-15
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Expires: 1987-07-05
Abstract
No abstract record available.
Inventors
- 👤 Thomas Diggins
- 👤 Alexander Carini
- 👤 Kenneth Boynton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:34
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/08; B23K1/085; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/8593; Y10T137/85978; Y10T137/85986; Y10T137/85994
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1708380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |