US2981977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold locking ring
Assignee: Super Mold Corp of California
•
Filing: 1959-03-23
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Granted: 1961-05-02
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Expires: 1979-03-23
Abstract
No abstract record available.
Inventors
- 👤 John J Fannen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:37
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/0601; B29D30/0606; B29D30/52; B29D30/54; B29C; B29C35/00; B29C35/02; B29C2035/0211; Y; Y10; Y10T; Y10T292/00; Y10T292/20; Y10T292/205; Y10T292/212; Y10T292/216
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US484235A
Cited
US491645A
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US689201A
Cited
US1455625A
Cited
US1462286A
Cited
FR549989A
Cited
US2035844A
Cited
GB481883A
Cited
GB551457A
Cited
GB664608A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |