Patent US2721684A successfully refreshed from Google Patents.
US2721684A
Expired / Lapsed
US
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Machine for feeding and filling receptacles for plant potting
Assignee: HEINL
•
Filing: 1953-02-10
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Granted: 1955-10-25
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Expires: 1973-02-10
Abstract
No abstract record available.
Inventors
- 👤 Heinl Joseph Lawrence
- 👤 William J Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:14
CPC Classifications
A; A01; A01G; A01G9/00; A01G9/08; A01G9/081; A01G9/088; B; B65; B65B; B65B1/00; B65B1/04; Y; Y10; Y10S; Y10S47/00; Y10S47/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1306447A
Cited
US934118A
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US2003417A
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US2029299A
Cited
GB419239A
Cited
US2108301A
Cited
US2553250A
Cited
US2536516A
Cited
US2621844A
Cited
US2696776A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-24 | 1959-04-25 | 1959-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-24 | 1963-04-25 | 1963-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-24 | 1967-04-25 | 1967-10-25 | $7700.00 | Window Closed / Lapsed |