US2881680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making plant pots
Assignee: Individual
•
Filing: 1955-08-10
•
Granted: 1959-04-14
•
Expires: 1975-08-10
Abstract
No abstract record available.
Inventors
- 👤 Ralph A Spengler
- 👤 Alfred O Reynolds
- 👤 Charles W Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:53
CPC Classifications
D; D21; D21J; D21J7/00; A; A01; A01G; A01G24/00; A01G24/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1303191A
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US2685969A
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US1328267A
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US1956776A
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US2067716A
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GB641280A
Cited
US2728169A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |