US2780296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid dispensing system
Assignee: Specialties Development Corp
•
Filing: 1953-01-19
•
Granted: 1957-02-05
•
Expires: 1973-01-19
Abstract
No abstract record available.
Inventors
- 👤 Henry E Heigis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:21
CPC Classifications
A; A62; A62C; A62C35/00; A62C35/58; A62C35/60; A62C35/605; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8326; Y10T137/8593; Y10T137/87153; Y10T137/87161; Y10T137/877; Y10T137/87708; Y10T137/87764
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US605049A
Cited
US775719A
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US902417A
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US1168744A
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US1884179A
Cited
US1861916A
Cited
US2240791A
Cited
US2588202A
Cited
US2630867A
Cited
US2639884A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |